Search Results — 2000 specimen records retrieved (1593 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA585489  Abronia maritima R. E. Riefner Jr. 1994-5-22 94 -380 Orange San Mateo Point, W of RR tracks, just N of Orange Co. line marker. Comment
  SBBG69882  Abronia maritima M. N. Ackley 1928-9-22 Orange Sunset Beach Comment
  CAS-BOT-BC229410  Abronia umbellata L. R. Abrams 1917-6-23 6573 Orange Balboa Comment
  UC101373  Abronia villosa C. F. Baker 1903-4-1 4125 Orange Anaheim Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  POM47584  Abronia villosa var. aurita I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana. Comment
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  RSA651412  Acacia baileyana L. Holderman 1949-2-13 s.n. Orange Collected on Lemon Heights, 5 mi. west of Santa Ana. 54 Comment
  UCSB52938  Acacia cyanophylla F. M. Roberts, Jr. 1984-3-15 1260 Orange collected 1.0 km SSW and 3.0 km W, along Back Bay Drive in Newport Back Bay Bayview School and U. C. Irvine Campus Center - Newport Back Bay, Back Bay Drive, U. C. Irvine Campus Center 2 Comment
  CDA23153  Acacia cyclops Mark A. Elvin, D. G. Kelch 2006-12-9 5291 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UCR140879  Acacia cyclops Robert DeRuff 1987-1 294 Orange Southern Coast, Newport Beach, Upper Newport Bay, on Castaway's Bluff 24 Comment
  IRVC29869  Acacia cyclops Mark A. Elvin, Dean Kelch 2006-12-9 5291 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA639692  Acacia redolens Scott D. White, P. De Vries 1998-12-10 s.n Orange Brea; Oil field south of Tonner Canyon and north of Lambert rd. Comment
  IRVC23426  Acer macrophyllum Fred M. Roberts 1985-7-26 2087 Orange Santa Ana Mtns: Upper trabuco Cyn, 1.3 km NE Los Pinos Pk. Peninsular Ranges 1225 Comment
  JEPS42668  Acer macrophyllum John Thomas Howell 1927-7-26 2839 Orange Claymine Canyon Santa Ana Mts., Claymine Canyon 304 Comment
  RSA7575  Acer macrophyllum Carl B. Wolf 1933-11-8 5541 Orange At Yaeyer's Cabin, Trabuco Canyon. 762 Comment
  RSA797915  Acer macrophyllum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49825 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA788919  Achillea millefolium Fred M. Roberts 1999-6-10 5241 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., adjacent to the Sinks, 0.7 km E Bolero Spring and 1.9 km NW Bolero Lookout. 411 Comment
  UCSB42431  Acmispon glaber Fountain, L. 1966-5-6 Orange Imperial Highway near Associated Road Comment
  SD212599  Acmispon heermannii var. heermannii A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33005 Orange Santa Ana Mountains; San Juan Canyon from Lower San Juan Picnic Area to ca. 1.0 mile downstream, parallel to Highway 74 and near Riverside County line. 366 Comment
  UCSB48115  Acmispon strigosus Roberts, Jr., Fred 1981-4-12 Orange Santa Ana Mountains; San Juan Canyon, Hwy. 74, 1.3 km. by road E San Juan Guard Station; 0.9 km. SE Juan Rancho Survey Mark 295 Comment
  POM201749  Acourtia microcephala L. M. Booth 1932-7-4 1243 Orange Newport Lagoon. Comment
  POM50881  Acourtia microcephala L. R. Abrams 1901-06 1855 Orange Trabuco Canyon Comment
  RSA788092  Acourtia microcephala R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  UCD170068  Acourtia microcephala R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  UCR281525  Acourtia microcephala Mitch Provance 2017-6-9 617- 101 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCSB48009  Acourtia microcephala Roberts, Fred 1980-7-11 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.4 km. ENE San Juan Guard Station; 0.3 km. W of Bench Mark 1100 345 Comment
  RSA542471  Acourtia microcephala Fred M. Roberts, K. Keane 1988-5-25 4584 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  RSA3142  Adenostoma fasciculatum var. obtusifolium Carl B. Wolf 1931-7-7 2276 Orange Procotr Valley, 4 miles above the Upper Otay reservoir on the road to Jamul (east of Mt. San Miguel). 244 Comment
Read comments
Jun 8 2016
  RSA788246  Adiantum capillus-veneris R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49622 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station Comment
  SD247263  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 0 Comment
  RSA610231  Adiantum capillus-veneris Fred M. Roberts 1997-4-19 5012 Orange Santa Ana Mtns. San Juan Canyon along San Juan Creek at CA Rte 74 bridge just E of San Juan Hot Springs, 0.8 km SSE Juan Rancho Survey Mark. 235 Comment
  POM188247  Adiantum jordanii Marcus E. Jones 1931-3-23 28426 Orange Laguna Comment
  RSA124721  Adiantum jordanii E. K. Balls, Percy C. Everett 1957-11-25 22844 Orange Trabuco Canyon, 1.7 mi W of entrance to Holy Jim Canyon. 671 Comment
  UCR188945  Aesculus californica Robert DeRuff 2004-1 549 Orange Newport Beach, Upper Newport Bay, Eastbluff North, below and north of intersection of Back Bay Drive and Eastbluff Drive 7 Comment
  UCR239501  Agave americana A. C. Sanders, Fred M. Roberts 2008-4-8 34737 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA759121  Ageratina adenophora Robt. Allen 2007-7-15 s.n. Orange San Juan Canyon, Ortega Hwy, circa 1.2 road mi E of San Juan Fire Station 308 Comment
  SBBG101679  Agoseris grandiflora S. Boyd with Mistretta 1991-5-9 6198 Orange crest of range at Oak Flat, SE of Sierra Pk, just W of Riverside County line 822 Comment
  CAS-BOT-BC13326  Agoseris retrorsa L. R. Abrams 1901-6-15 1845 Orange Santiago Peak Comment
  RSA0013581  Agrostis pallens D. E. Bramlet 2008-5-28 4284 A Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road & 434m W of the active landfill. Comment
  RSA734668  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  CAS-BOT-BC138654  Agrostis stolonifera Carl B. Wolf 1932-6-13 3722 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA759146  Ailanthus altissima Robert Allen, D. Taylor 2008-7-19 s.n. Orange Eastern arm of Bedford Peak, along North Main Divide Road, 2.2 road miles N of junction with Bedford Road, 5.9 miles N of junction with Maple Springs Road. 1155 Comment
  RSA689740  Albizia distachya Scott D. White, Brian Leatherman 2003-10-30 9849 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  RSA443849  Allium haematochiton Karlin G. Marsh 1984-2-14 s.n. Orange Casper s Regional Park: just south of Lower Lucas Canyon, ca. 135 m. 135 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  POM19174  Allium monticola Philip A. Munz, D. Keck 1923-6-14 7095 Orange Santiago Peak. Summit. 1640 Comment
  CAS-BOT-BC474098  Allium praecox Munz; L. Street; Williams 1919-5-3 2635 Orange Santa Ana River Canyon Comment
  UCD169758  Allophyllum glutinosum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49604 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. 290 Comment
  IRVC21737  Alnus rhombifolia Fred M. Roberts 1984-10-18 1425 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  SEINET10572636  Aloe Charlene A. Bennett 1976-7-21 Bennett 431 Orange Cultivated plants collected in and around the condominium pacific island Estates in laguna hills; some native shrubs, etc. 152 Comment
  SD153014  Aloe chabaudii Steve Boyd, T. Ross 1992-5-20 7470 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, western edge of wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream Ao mile from Lucas Canyon Trail crossing. 390 Comment
  RSA5812  Amaranthus albus C. B. Wolf 1932-6-28 3770 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  UCD130604  Amaranthus blitoides Beecher Crampton 1972-6-15 8812 Orange Irvine area, UC South Coast Field Station. Comment
  UCSB37368  Amaranthus hybridus Roos, Alfred 1937-12-2 Orange Santa Ana Comment
  IRVC22  Amaranthus retroflexus I. L. Wiggins 1965-11-3 20312 Orange Orange Grove E CSUF campus. Fullerton Comment
  IRVC17986  Amblyopappus pusillus A. B. McGee 1980-9-9 Orange San Diego Creek Channel, adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  IRVC8605  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UC536894  Amblyopappus pusillus Lawrence M. Booth 1932-5-12 1007 Orange Newport Bay Comment
  CAS-BOT-BC13606  Ambrosia acanthicarpa Ira L. Wiggins 1965-11-6 20351 Orange Near Well No. 14, Kraemer Oil Estates, near end of road leading to Rancho Santa Ana. Comment
  RSA184184  Ambrosia acanthicarpa I. L. Wiggins 1965-11-6 20351 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  UCR261707  Ambrosia acanthicarpa Dick Newell, Don Millar 2014-9-14 384 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.1 mi. above the 241 Toll Rd./Foothill Transp. Corridor 202 Comment
  POM201848  Ambrosia acanthicarpa L. M. Booth 1932-7-30 1340 Orange Santa Ana River, 2 miles from ocean Comment
  RSA747703  Ambrosia chamissonis Fred M. Roberts 2008-5-16 6976 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UCR109969  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-4-29 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  CAS-BOT-BC13768  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  RSA0019780  Ambrosia chamissonis Kevin B. Clark 2005-3-8 s.n. Orange Balboa, 200 yards south of Balboa Pier. In the city of Newport Beach, Near foot of E Street, on beach. 2 Comment
  RSA4814  Ambrosia chamissonis D. L. Crawford 1928-07 s.n. Orange Beach Comment
  CAS-BOT-BC133200  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  RSA33797  Ambrosia psilostachya N. C. Cooper 1942-11-9 882 Orange Balboa. Comment
  SD241729  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cover Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  UCR197676  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-9-18 36073 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM47597  Ambrosia psilostachya I. M. Johnston s.n. Orange 3 mi. N of Balboa Comment
  UC176003  Ambrosia psilostachya Geo. R. Hall 1914-9-30 Orange Santa Ana Comment
  RSA800133  Ammannia coccinea Justin M. Wood 2010-9-29 2746 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC180619  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  LA204906  Amorpha fruticosa A. H. Longe; 1951-5-10 sn Orange Balboa Comment
  RSA603352  Amorpha fruticosa Scott D. White, Brian Leatherman 1997-6-12 5329 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  CLARK-A1528-460  Amorpha fruticosa var. occidentalis Dave Cerf 1971-4-17 Orange Orange Park Acres 243 Comment
  RSA0090945  Amsinckia eastwoodiae James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Comment
  RSA0127413  Amsinckia intermedia Fred M. Roberts 2016-3-17 8008 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR223429  Amsinckia intermedia Dick Newell, Don Millar 2011-2-15 061 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  UCSB15050  Amsinckia intermedia Breedlove, Dennis 1962-3-9 Orange 6.4 miles east of San Juan Capistrano on State 74 121 Comment
  IRVC22198  Amsinckia menziesii var. intermedia Fred M. Roberts 1985-4-8 1636 Orange San Joaquin Hills, Turtle Rock area, hill 1.1km SE French Hill, Irvine 196 Comment
  IRVC224  Amsinckia menziesii var. intermedia McGuire 1965-5-1 Orange Corona del Mar. Newport Beach Comment
  IRVC228  Amsinckia menziesii var. intermedia I. L. Wiggins 1966-3-4 20495 Orange Santa Ana Canyon], Riverside Fwy, 4.5mi E Newport Fwy exit; in full sun, [annual grassland]. Anaheim Comment
  RSA789229  Anagallis arvensis Naomi Fraga, Duncan S. Bell 2009-5-11 2712 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR191435  Anagallis arvensis A. C. Sanders, Fred M. Roberts 2008-4-8 34729 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR99874  Anagallis arvensis Scott D. White 1996-12-20 4636 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA593764  Ancistrocarphus filagineus Steve Boyd 1996-4-14 8547 Orange Santa Ana Mountains, along Main Divide Road, ca 2.4 road miles south of Sierra Peak in upper watershed of Fremont Canyon, just west of the divide with Mabey Canyon. 841 Comment
  POM2017  Anemopsis californica D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA651285  Anemopsis californica Marcy Keys 1981-5-24 81 Orange 3 miles inland from Laguna Beach on Laguna Canyon Rd. Comment
  UCR159783  Anemopsis californica Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; in marsh at north edge of marsh beside UCI Arboretum 3 Comment
  POM47581  Anemopsis californica I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana. Comment
  IRVC17997  Anthemis cotula A. B. McGee 1970-9-9 Orange San Diego Creek Channel adjacent to San Joaquin Freshwater Marsh. Irvine Comment
  RSA542472  Anthemis cotula Fred M. Roberts 1988-4-14 3926 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  UCR186365  Anthriscus caucalis Robert DeRuff 1995-4-30 483 Orange Southern Coast, Newport Beach, Newport Back Bay, at and above intersection of San Joaquin Hills Rd. and Backbay Dr. 2 Comment
  RSA594818  Antirrhinum kelloggii Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4912 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA0036640  Antirrhinum multiflorum Robt. Allen, Trish Smith, Mike Kahle 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Fremont Canyon, ridge to the east, saddle between Fremont & Black Star Canyon watersheds. Northern terminus of unpaved Lakeview Road. Base of Southern California Edison Tower #33-1 M33T1A. 761 Comment
  RSA734655  Antirrhinum nuttallianum A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35315 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA743494  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  RSA704933  Aphanes occidentalis Fred M. Roberts, David E. Bramlet 2004-4-21 6038 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon, tributary to Cristianitos Cyn., 1.18 km NW Sycamore Gate, 1.08 km W of Cristianitos Road. 162 Comment
  RSA737480  Aphanisma blitoides Fred M. Roberts 2008-3-12 6736 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA603357  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  RSA539397  Aralia californica Fred M. Roberts, Carol A. Roberts 1988-6-9 4067 Orange Santa Ana Mountains: Main Divide Truck Trail, Upper Silverado Canyon, 1.9 kilometer N Modjeska Peak. 1128 Comment
  RSA542587  Aralia californica Fred M. Roberts, R. E. Riefner 1988-7-19 4114 Orange Santa Ana Mountains; Maple Springs Truck Trail, Upper Silverado Canyon, 1.9km N Modjeska Peak. 1128 Comment
  UC1424830 Image available Aralia californica E. W. Lathrop 1977-6-16 7656 Orange Big Cone Spring on Maple Springs Rd., Silverado Canyon Santa Ana Mts., Cleveland Nat'l Forest, Trabuco District, Si 1280 Comment
  IRVC19394  Araujia sericifera R. L. Allen 1983-2-12 A627 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  SD254523  Araujia sericifera Eric Focht 2016-7-8 1 Orange South Coast: University of California Research and Extension Center, 7601 Irvine Blvd., Irvine Field 6 (El Toro 7.5'Q) 13 Comment
  CAS-BOT-BC128676  Arbutus menziesii Carl B. Wolf 1933-11-8 2008 Orange Trabuco Canyon on south wall opposite the Trabuco Truck Trail, Santa Ana Mts. 914 Comment
  LA42394  Arctostaphylos glandulosa W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Trail 1219 Comment
  LA42396  Arctostaphylos glandulosa W. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 914 Comment
Read comments
Aug 29 2015
  LA42398  Arctostaphylos glandulosa W. Pequegnat; 1938-9-3 sn Orange Santa Ana Mountains, Ortega Rd 731 Comment
  RSA629335  Arctostaphylos glandulosa Jon E. Keeley 1992-6-12 15527 Orange North of El Cariso on road to Los Pinos Pk, 3.8 km north of Hwy 74. 1000 Comment
  UCR281858  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42698 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 959 Comment
  CAS-BOT-BC23104  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1927-6-26 2603 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  IRVC1255  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA629344  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15501 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  SD247632  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49683 Orange Northern Santa Ana Mountains; Coal Canyon [NW of Sierra Peak] 456 Comment
  POM254954  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 Comment
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 Comment
  SEINET5585509  Arctotheca prostrata R. E. Riefner Jr. 2013-1 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  UC592899 Image available Argemone munita Carl B. Wolf 1933-8-24 5403 Orange summit of Santiago Peak Santa Ana Mountains 1731 Comment
  SEINET4085709  Argemone munita var. robusta G. B. Ownbey, F. Ownbey 1954-1 2177 Orange Between Modjesca Peak and Santiago Peak. 1524 Comment
  UCR215303  Argyranthemum foeniculaceum Fred M. Roberts 2008-3-27 6814 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  RSA542514  Aristida adscensionis Fred M. Roberts 1987-3-31 3321 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout, UTM 3727900m N, 441800m E. 424 Comment
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA663207  Aristida purpurea var. parishii R. E. Riefner 2000-8-3 20 -709 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  POM257051  Arnica discoidea W. Pequegnat 1940-4-13 s.n. Orange Modjeska Springs, Santa Ana Mts. 1311 Comment
  RSA156062  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange [Santa Ana Mountains] 4.8 miles above gate on Silverado Canyon Truck Trail. 1067 Comment
  CDA22506  Artemisia californica E. A. Hook, C. Tran 2006-2-4 1 Orange Southern Coastal; San Joaquin Marsh; northwest bluff edge. Comment
  IRVC479  Artemisia californica C. Thompson 281965 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  JEPS36942  Artemisia californica L. M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  RSA0028027  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  UCR186679  Artemisia californica T. B. Salvato, Katie Kurtz 2006-10-15 1912 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCR46553  Artemisia californica B. G. Pitzer, L. F. LaPre 1986-10-20 0311 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  UCSB52400  Artemisia californica Roberts, Fred 1982-9-15 Orange Santa Ana Mtns.; San Juan Trail, 1.1 km. SE Blue Jay Campground; 2.5 km. SSE Los Pinos Peak 997 Comment
Read comments
Jan 25 2020
  SEINET10953172  Artemisia californica Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 440 Orange Cultivated plants collected in and around the condominium - Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  IRVC3140  Artemisia douglasiana Fred M. Roberts 1986-9-3 3140 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA703143  Artemisia douglasiana Fred M. Roberts, Arthur Davenport 2003-9-11 6012 Orange Rancho Mission Viejo; Donna O'neill Land Conservancy, Cristianitos Cyn., 0.79 km N of Sycamore Gate, 0.23 km W of Christianitos Road. 126 Comment
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  UC489198  Artemisia dracunculus C. V. Meyer 1928-7-30 597 Orange Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
Read comments
Nov 12 2014
  RSA0042766  Artemisia palmeri Fred M. Roberts 2012-7-18 7669 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  UCR130354  Asclepias curassavica A. C. Sanders, Mark A. Elvin 2003-10-12 27323 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA0104746  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35489 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff s Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261. 357 Comment
  UCR193766  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-7-3 35672 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR103705  Asparagus asparagoides B. G. Pitzer, T. Tennant 1997-11-8 3372 .1 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  RSA184112  Asparagus asparagoides I. L. Wiggins 1965-6-5 20330 Orange Orange grove on N side of Chapman Ave. near Kraemer Rd. Comment
  RSA741481  Asphodelus fistulosus R. E. Riefner 2008-5-30 08 -125 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
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Feb 28 2016
  RSA0045439  Asphodelus fistulosus Wendy Boes 2009-3-25 2009 -008 Orange Peninsular Ranges; Santa Ana Mountains; South Main Divide Road. 931 Comment
  POM202111  Aster subulatus var. ligulatus L. M. Booth 1932-8-5 1356 Orange Bolsas Marsh. Comment
  CAS-BOT-BC180451  Astragalus brauntonii Carl B. Wolf 1936-6-22 8000 Orange Santa Ana Mts., No. slopes of Sierra pk., Claymine Canyon truck trail to Sierra Pk. 457 Comment
  NY621861  Astragalus brauntonii C. B. Wolf 1936-6-22 8000 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA0089238  Astragalus didymocarpus David E. Bramlet, J. E. Harrison 2008-4-3 4157 Orange Peninsular Range; Santa Ana Mountains: South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill. 224 Comment
  RSA379  Astragalus didymocarpus J. T. Howell 1928-3-17 872 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR266298  Astragalus didymocarpus D. E. Bramlet, J. E. Harrison 2008-4-3 4154 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  RSA220982  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR192500  Astragalus gambelianus A. C. Sanders, Fred M. Roberts 2008-3-25 34547 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR234139  Astragalus trichopodus Dick Newell, Don Millar, Judy Booth 2012-4-25 246 Orange South Coastal Plain, Muth Interpretive Center, upper Newport Bay, Newport Beach 9 Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  RSA90711  Astragalus trichopodus var. lonchus F. W. Peirson 1923-9-8 4044 Orange Trabucco Canyon. 427 Comment
  SD255167  Astragalus trichopodus var. lonchus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49770 Orange Santa Ana Mountains; Trabuco Canyon. Comment
  CDA23088  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5299 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UC1980256  Atriplex R. E. Riefner Jr. 2007-10-26 07 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. Comment
  UCR203889  Atriplex R. E. Riefner Jr. 2006-10-2 06 466 Orange city of Lake Forest, north of Portola Parkway and immediately west of SR-241 fwy at avocado orchard, vicinity of Tomato Spring 206 Comment
  UCR203891  Atriplex R. E. Riefner Jr. 2006-10-19 06- 546 Orange city of Lake Forest, c. 0.5 mi north of Alton Parkway on east side of SR-241 230 Comment
  RSA752215  Atriplex amnicola R. E. Riefner Jr. 2002-5-4 02 -91 Orange Upper Newport Bay, Jamboree Rd. and Bayview Dr. 15 Comment
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Feb 28 2016
  SD243118  Atriplex amnicola R. E. Riefner Jr. 2006-2-12 06 21 Orange South Coast: N end of City of San Clemente, along N-bound I-5, immediately S of Camino de Estrella exit ramp (Dana Point 7.5'Q) 66 Comment
  UCR203904  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08- 118 Orange South Coast, San Clemente, vicinity of Camino de Los Mares and Calle Nuevo 45 Comment
  RSA743665  Atriplex amnicola R. E. Riefner 2007-9-11 7 -378 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  SBBG122001  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange near Bayview Way and Bayview Place, upper Newport Bay 6 Comment
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Dec 13 2012
  POM254668  Atriplex californica F. W. Peirson 1924-2-10 4534 Orange Corona Del Mar Comment
  RSA716777  Atriplex californica Fred M. Roberts, Chris M. Barnhill 2004-7-10 6072 Orange Laguna Beach: Crescent Bay, at base of Twin Points. 3 Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  RSA234538  Atriplex canescens James Henrickson 1970-7-24 5018 Orange 3 miles NW of Huntington Beach on sandy ''Rabbit'' Island in Bolsa Chica Salt March near Inner Bolsa Bay. 1 Comment
  CAS-BOT-BC170196  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3162 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC172632  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  POM201920  Atriplex coulteri L. M. Booth 1932-5-18 s.n. Orange Newport Bay. Comment
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Feb 3 2015
  SEINET1908425  Atriplex glauca A. C. Sanders 2008-1 35139 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi SW of Santiago Reservoir 1000 Comment
  UCR127689  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange South Coast, Roadside, some 120 m east of intersection of Irvine Ave. and University Drive, c. 1 m south of University Drive Comment
  RSA743658  Atriplex glauca R. E. Riefner Jr. 2007-8-22 7 -370 Orange Ladera Ranch/San Juan Capistrano area, Antonio Pkwy. ca. 0.6 miles S of Covenant Hills Rd. 170 Comment
  RSA795709  Atriplex glauca W. R. Ferren 1991-12-3 EPA- 17 Orange San Juan Creek Highway 74 at bridge for San Juan Creek, San Juan Capistrano. Comment
  SD253971  Atriplex lentiformis Jim Riley 2013-12-10 136 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  CLARK-A1528-2529  Atriplex leucophylla John C. Roos 1937-2-23 1307 Orange Laguna Beach Comment
  POM641  Atriplex leucophylla D. L. Crawford 1925-07 s.n. Orange Beach Comment
  UC517553  Atriplex pacifica John Thomas Howell 1927-7-17 2788 Orange 1 mi n Laguna Beach; n of Laguna Beach 30 Comment
  RSA5446  Atriplex parryi C. B. Wolf 1932-8-11 s.n. Orange About 2 blocks west of center of town of Lancaster. Antelope Valley, Mojave Desert. 718 Comment
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Oct 29 2013
  RSA717049  Atriplex prostrata Fred M. Roberts, Chris M. Barnhill 2005-9-27 6282 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA689538  Atriplex prostrata R. E. Riefner 2003-8-31 3 -340 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  UCD97575  Atriplex rhagodioides D. E. Bramlet 2003-6-17 3466 Orange Upper Newport Bay, Big Canyon. This site is located in Big Canyon, 128 m east of Backbay Drive and 70 m south of the existing maintenance road. 7 Comment
  RSA65341  Atriplex rosea F. W. Peirson 1924-8-29 s.n. Orange 4 miles south of Santa Ana. Comment
  UCSB52445  Atriplex rosea Ferren, Wayne; Roberts, Jr., Fred 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., parking lot at mouth of Big Canyon; 2.6 km. ENE Newport Harbor High School Comment
  HSC34526  Atriplex semibaccata J. D. Ackerman, A. M. Montalvo 1974-3-28 167 Orange S Laguna, by S Laguna Sanitary Station Comment
  SD253974  Atriplex semibaccata Jim Riley 2013-10-15 121 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  POM279024  Atriplex semibaccata Grant D. Brown 1949-10-9 401 Orange 3 mi. N of Corona Del Mar on road to Santa Ana. 6 Comment
  RSA703251  Atriplex suberecta R. E. Riefner Jr. 1999-5-22 4 -292 Orange City of Dana Point, west of Pacific Coast Hwy., vicinity of Salt Creek Park and Ritz Carlton Hotel. 15 Comment
  RSA708217  Atriplex suberecta Mark Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  RSA65393  Atriplex subspicata F. W. Peirson 1924-8-29 s.n. Orange 2.5 miles from Balboa Beach on road inland along creek Comment
  UCR116014  Atriplex triangularis George K. Helmkamp, E. A. Helmkamp 2000-10-18 6231 Orange Newport Bay, South side of the back bay. 6 Comment
  UCR67013  Atriplex triangularis A. C. Sanders 1990-10-6 10189 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  RSA234520  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  JEPS68451  Avena barbata L. M. Booth 1932-5-12 1040 Orange Newport Bay Comment
  CAS-BOT-BC146154  Avena fatua Ira L. Wiggins 1966-3-1 20481 Orange West edge of California State College at Fullerton Campus. Comment
  RSA385407  Avena fatua Anonymous 1914-8-22 s.n. Orange Near Harper. [1909-1920, then became Costa Mesa] Comment
  RSA734680  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SEINET3919709  Avena fatua Keith E. Hoffmaster 1936-4-14 708 Orange Santa Ana.; 0 Comment
  RSA0046823  Avena fatua Jason Berkley 1994-5-3 14 Orange Yorba Linda, grassy field off Bastuchury Rd. 50 yds from Casa Loma Ave. Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  JEPS30717  Baccharis glutinosa Peter H. Raven 1961-10-15 16861 Orange 2 mi se of Sunset Beach (Coast Highway); Coast Highway Comment
  RSA650812  Baccharis glutinosa Daniel Truong 1991-5-13 26 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA741699  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08 -239 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 574 Comment
  RSA741701  Baccharis malibuensis R. E. Riefner Jr. 2008-7-2 08 -181 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 660 Comment
  CAS-BOT-BC99444  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange so. end of town of San Clemente 15 Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA5596  Baccharis pilularis B. D. Stark 1933-1-21 4523 Orange San Clemente Comment
  RSA703357  Baccharis pilularis Fred M. Roberts, Laura Cohen 2004-2-13 6024 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon tributary to Cristianitos Cyn., 1.34 km NW Sycamore Gate, 0.85 km W of Cristianitos Road. 156 Comment
  RSA731920  Baccharis pilularis Fred M. Roberts, Sandy Leatherman 2007-11-27 6659 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  UC532156  Baccharis pilularis Carl B. Wolf 1934-12-26 2310 Orange s end of town of San Clemente 15 Comment
  SD11869  Baccharis pilularis subsp. consanguinea Carl B. Wolf 1934-12-26 6262 Orange South end of San Clemente. 14 Comment
  SEINET5642762  Baccharis salicifolia Shelby J. Wood 2013-3-9 16 Orange Huntington Beach, Central Park.; 0 Comment
  CAS-BOT-BC106667  Baccharis salicina Peter H. Raven 1957-9-28 11382 Orange In moist spot, salt marshes at north limits of Surfside Comment
  HSC79863  Baccharis salicina James Henrickson 1972-10-21 8047 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N of Santa Ana River. 61 Comment
  JEPS21259  Baccharis salicina L. M. Booth 1933-10-18 Orange Newport Beach Comment
  UCD129397  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well no. 15, near end of county road constituted by continuation of Orangethorpe Ave. Comment
  UCR207594  Baccharis salicina O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR46557  Baccharis salicina B. G. Pitzer, L. F. LaPre 1986-10-20 0310 Orange Peninsular Range; Santa Ana Mtns., Siphon Reservoir, c. 5 mi NE of Irvine and c. 1 mi NE of intersection Irvine Blvd and Sand Canyon Ave 122 Comment
  RSA0069229  Baccharis sarothroides Fred M. Roberts, Sandra Leatherman 2008-9-3 7091 Orange Santa Ana River Canyon: Yorba Linda: intersection of La Palma Ave. and Mercado del Rio Street. 135 Comment
  UCR267221  Baccharis sarothroides Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7093 Orange Santa Ana River Canyon, YORBA LINDA: intersection of La Palma Ave. and Mercado del Rio Street 135 Comment
  RSA0069228  Bacopa monnieri Fred M. Roberts, Sandra Leatherman 2008-9-3 7090 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  RSA615541  Bahiopsis laciniata Fred M. Roberts 1997-10-28 5052 Orange Lomas de Santiago: mouth of Silverado Canyon, along Black Star Canyon Road, 0.1 km N jct. Silverado Canyon rd., 4.8 km NNW Bolero Lookout. 305 Comment
  CDA13500  Basella alba L. Pope 1997-11-2 s.n. Orange Homewood Ave., Buena Park. 0 Comment
  CHSC26008  Bassia hyssopifolia James Henrickson 1970-7-24 4953 Orange 1 1/2 miles NW of Huntington Beach, along border of Bolsa Chico Salt Marsh at SW end of Huntington Beach Mesa. 7 Comment
  IRVC25221  Bassia hyssopifolia Fred M. Roberts 1986-11-4 3202 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  SBBG47293  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SEINET238998  Bassia hyssopifolia R. D. Goeden 1965-7-7 Orange Tustin township near Peters Canyon Channel E of Santa Ana Marine Corps Air Station (Tustin 7.5' Q.) 61 Comment
  UCD97659  Bassia hyssopifolia Ira L. Wiggins 1966-4-22 20616 Orange On eroded roadway leading to oilwell, W side of Associated Road, between Yorba Linda Boulevard and Imperial Highway. Comment
  RSA5825  Bassia hyssopifolia C. B. Wolf 1932-6-28 3797 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  POM201794  Batis maritima L. M. Booth 1932-8-5 1349 Orange Santa Ana Delta Comment
  RSA439760  Batis maritima Anstruther Davidson 1902-9-1 s.n. Orange Newport Beach Comment
  SEINET6418583 Image available Batis maritima Lawrence M. Booth 1932-1 1184 Orange Newport Bay Comment
  UC1779704  Batis maritima Rudolf Schmid 1999-7-14 1999 -7 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCR20637  Batis maritima A. C. Sanders 1974-6-19 00174 Orange Upper Newport Bay 3 Comment
  UCR224044  Batis maritima Justin M. Wood 2009-12-1 1388 Orange South Coast, Santa Ana River, marsh just upstream of Pacific Coast Highway 2 Comment
  UCSB21667  Batis maritima Keefe, Joseph 1967-3-26 Orange South side of Newport Bay, on Back Bay Drive, 2.0 miles northeast of junction with Jamboree Drive, Corona del Mar 3 Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  RSA5334  Bebbia juncea B. D. Stark 1933-1-3 4480 Orange Rancho Santa Ana near pear orchard. 122 Comment
  UCR193051  Bebbia juncea A. C. Sanders, Mitch Provance 2008-5-20 35404 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  CAS-BOT-BC106379  Bebbia juncea var. aspera Scott D. White 1997-5-6 5034 Orange Santiago Canyon: Ca. 1.5 mi N of Modjeska Cyn. USGS El Toro 7 1/2 ' quad, Lomas de Santiago S178 - Santa Ana Mts. 350 Comment
  UCSB48366  Berberis aquifolium var. dictyota Roberts, Jr., Fred 1982-4-18 Orange Santa Ana Mtns.; Hot Springs Canyon, 0.6 km. SW Falcon Group Camp 1033 Comment
  RSA797475  Berberis pinnata subsp. pinnata R. F. Thorne 1977-11-21 49988 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  SD255114  Berberis pinnata subsp. pinnata R. F. Thorne 1977-11-21 49988 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station. Comment
  RSA799647  Bidens frondosa Justin M. Wood 2010-9-29 2742 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  UCR150565  Bidens laevis Scott D. White, Matt Carlton 2003-11-20 9876 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  RSA795433  Bidens laevis W. R. Ferren 1991-12-1 EPA- 13 Orange San Joaquin Marsh north of San Diego Creek and east of MacArthur Boulevard. Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  RSA0012750  Bloomeria crocea var. crocea Fred M. Roberts 2012-5-10 7575 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  SEINET199453  Bloomeria crocea var. crocea J. R. Glen 1957-5-3 Orange 0.5 mile from the San Bernardino county line. 3 miles east of Olinda along Carbon Canyon road 201 Comment
  RSA542342  Bloomeria crocea var. crocea Fred M. Roberts, Karlin G. Marsh 1988-4-25 3932 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  UCR12590  Bolboschoenus maritimus subsp. paludosus J. S. Davis 1972-5-6 720506- 10 Orange South Coast, Newport Beach, between corner of San Joaquin Hills Road & Back Bay Road, & salt marsh flats. 0 Comment
  RSA682595  Bothriochloa barbinodis Scott D. White, Amanda Duchardt 2003-3-27 8859 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA702687  Bothriochloa barbinodis Scott D. White, Michael Honer 2004-5-17 10396 Orange City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR190974  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR218460  Bougainvillea glabra Robert DeRuff 2008-1 348 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  JEPS12252  Bowlesia incana Lawrence M. Booth 1932-5-19 1065 Orange Newport Bay Comment
  POM8809  Bowlesia incana P. A. Munz, R. D. Harwood 1920-4-24 3778 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA709698  Brachypodium distachyon Scott D. White, Jennifer H. Jones 2005-4-26 10973 Orange City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home. Comment
  UCR191215  Brachypodium distachyon A. C. Sanders 2008-4-29 35145 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR239225  Brachypodium distachyon Fred M. Roberts 2012-4-24 7509 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  IRVC14742  Brassica geniculata A. S. Boughey 1968-4-23 214 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  CDA24706  Brassica nigra T. C. Fuller 1962-4-5 8143 Orange East of Highway 101, San Clemente. 0 Comment
  IRVC1036  Brassica nigra B. Mawdsley 1965-5-8 Orange Mesa Dr. Santa Ana Heights Comment
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  RSA0066343  Brassica nigra Fred M. Roberts, David E. Bramlet 2004-4-21 6041 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Flagpole Meadow in upper Shady Canyon, 1.63 km NW Sycamore Gate, 1.18 km W of Cristianitos Road. 168 Comment
  UCR96201  Brassica nigra B. G. Pitzer 1996-4-30 2808 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA750066  Brickellia californica A. C. Sanders, Fred M. Roberts 2008-9-18 36067 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR142297  Brodiaea filifolia D. E. Bramlet, Sandy Leatherman 1998-5-21 2625 Orange Slope adjacent to a tributary of Segunda Deshecha Canada, c. 610 m N of the exisitng access road (Telaga Valley Dr.) and 2.9 km N of Avenida Pico. c. 1.93 km west of Cristianitos Canyon and 640 m west of Wilson Camp Rd 201 Comment
  RSA588769  Brodiaea jolonensis Fred M. Roberts 1990-5-7 4595 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  JEPS7700  Brodiaea terrestris subsp. kernensis Alice King Jun 1908 Orange Santa Ana Mts. Comment
  CAS-BOT-BC144328  Bromus Ira L. Wiggins 1966-3-5 20519 Orange About 0.5 mile west of El Torro Post Office, along Highway S-18. Comment
  SEINET10520186  Bromus carinatus LeRoy R. Abrams 1903-4-18 Abrams 3271 Orange Trabuco arroyo near Capistrano. Comment
  UC204884  Bromus carinatus var. carinatus R. L. Pendleton, F. M. Reed 1907-7-25 1195 Orange near Modjeska Falls (Lake Tahoe Region); Lake Tahoe Region Comment
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Sep 11 2013
  POM1272  Bromus catharticus C. B. Bradshaw s.n. Orange Orange. Comment
  RSA732241  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  UCSB21210  Bromus diandrus Leseman, Julie 1965-4-15 Orange Behind Fullerton Junior College, Fullerton Comment
  RSA747698  Bromus hordeaceus Fred M. Roberts 2008-4-16 6914 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  UC149788  Bromus madritensis subsp. rubens H. M. Hall May, 1902 3283 Orange along Santa Ana River Santa Ana River 182 Comment
  RSA699743  Bromus pseudolaevipes Fred M. Roberts, David E. Bramlet 2003-5-15 5876 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 1.41km SSW Gato Gate and 0.35km NNW of SDG&E substation. 122 Comment
  CAS-BOT-BC161820  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Along shoulder of Peralta Avenue, near junction of Newport Freeway and Riverside Highway. Comment
  RSA697681  Bromus rubens Anonymous 45 Orange Orange County park Comment
  RSA731996  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-4-8 34783 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  RSA734819  Bromus sterilis A. C. Sanders, Fred M. Roberts 2008-5-6 35251 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA0022428  Bromus tectorum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49786 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA696618  Bromus unioloides Keith E. Hoffmaster 1934-04 79 Orange Santa Ana. Comment
  POM202606  Cakile edentula subsp. edentula L. M. Booth 1932-5-27 1131 Orange Newport Beach Comment
  SD181648  Cakile maritima Valerie Soza, Kevin Clark, et al. 2001-4-4 1113 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal beach National Wildlife Refuge. 3 Comment
  SEINET5642639  Cakile maritima Shelby J. Wood 2013-3-9 8 Orange Sunset Beach close to Bolsa Chica.; 0 Comment
  UCR219802  Cakile maritima Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  RSA648659  Calamagrostis koelerioides R. E. Riefner 2000-6-22 20 -572 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  RSA734964  Calandrinia breweri A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35314 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  RSA737894  Calandrinia breweri R. E. Riefner 2008-5-15 08 -82 Orange Irvine Ranch Reserve, N Irvine Ranch, eastern Fremont Canyon area, Black Star SCE road. 549 Comment
  UCR192106  Calandrinia breweri A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35314 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA737846  Calandrinia breweri R. E. Riefner 2008-4-15 08 -72 Orange Irvine Ranch Reserve, North Irvine Ranch, western middle Freemont Canyon area, Coalmine SCE Rd. 353 Comment
  UCR223960  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  CDA5107  Callistemon viminalis R. E. Riefner Jr. 2006-11-14 06 -674 Orange City of Irvine, San Diego Creek; vicinity of Campus Avenue at University Drive. Comment
  RSA377257  Calochortus albus Albert J. Perkins 1914-5-3 s.n. Orange Trail to Santiago Peak. Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  RSA0013968  Calochortus catalinae Fred M. Roberts 2008-4-23 6926 Orange Lomas de Santiago: Loma Ridge, north end along Sheriff Rd., 1.6 km SE Peters Canyn Reservoir dam. 340 Comment
  RSA120  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA539373  Calochortus catalinae Fred M. Roberts, Karlin G. Marsh 1989-3-7 4192 Orange Lomas de Santiago: Loma Ridge, tributary to Hicks Canyon, ca. 1.9 kilometers WSW Bee Survey Mark. 134 Comment
  RSA625801  Calochortus catalinae Scott D. White, Noel Davis 1998-4-24 6343 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called ''Saddleback Meadow.'' 305 Comment
  RSA649058  Calochortus catalinae D. E. Bramlet 2000-4-17 2987 Orange West of Blind Canyon and north of Irvine Park and SW of the MDW [Metropolitan Water District] access road. 220 Comment
  RSA735172  Calochortus catalinae A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35289 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA741482  Calochortus catalinae R. E. Riefner 2008-4-20 8 -66 Orange On Loma Ridge, near city of Irvine, E side of Hicks Haul Rd., Irvine Ranch Reserve, Management Area 11. Comment
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Feb 2 2011
  RSA749289  Calochortus catalinae Fred M. Roberts 1999-4-2 5167 Orange Lomas de Santiago: ridge between Limestone Cyn. and Santiago Creek wash, 0.7 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 330 Comment
  RSA749297  Calochortus catalinae Fred M. Roberts 1999-4-21 5183 Orange Lomas de Santiago: Loma Ridge, ridges north of Dripping Springs Cyn., 1.5 km W Silverado Sch. and 4.8 km NNW Bolero Lookout. 365 Comment
  UCR191776  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34568 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA786593  Calochortus invenustus Doris Bowers 1971-4-19 1692 Orange Black Star Canyon Indian Site 762 Comment
  RSA649065  Calochortus plummerae D. E. Bramlet 2000-6-27 3063 Orange Fremont Canyon ridge road at crossing of Edison transmissionlines. NE of the old mine site, S of junction with Blind Canyon access road. 482 Comment
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA681013  Calochortus splendens Fred M. Roberts, David E. Bramlet 2003-3-13 5581 Orange Donna ONeill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA747589  Calochortus splendens Fred M. Roberts 2000-5-4 5317 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  RSA0055000  Calochortus splendens Jim Shevock 1970-4-25 153 Orange Near Irvine Lake. 304 Comment
  SEINET7067520  Calochortus striatus A. G. Vestal 1947-6-12 s.n. Orange Along a tributary of Arroyo Trabuco. Trabuco Creek. Coordinate datum: NAD27. UTM Zone 11, 444413mE, 3723361mN. Comment
  CAS-BOT-BC132659  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange Hills back of Laguna Beach Comment
  RSA0013583  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-22 4281 Orange Bee Cyn. Bowerman landfill site. 375m S of the Bee canyon access road. & 350m W of the active landfill. Comment
  RSA0065926  Calochortus weedii var. intermedius Allison D. Rudalevige, Jennifer S. Pareti 2015-5-11 ADR 12 Orange Bee Canyon. 259 Comment
  RSA20925  Calochortus weedii var. intermedius E. R. Johnson 1937-7-10 9019 Orange Chino-Puente Hills, NW. of La Vida Springs (Mrs. Bryants Property) Comment
  RSA588976  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-23 2392 Orange San Joaquin Hills. On ridgeline between Camarillo and Shady Canyons. The site is located 1.5 km west of Laguna Cyn. and 183 m SE of the Shady-Camarillo Cyn. Road Junction. 244 Comment
  RSA690980  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9429 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA788916  Calochortus weedii var. intermedius Fred M. Roberts 1999-6-10 5238 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., 1.3 km S Bolero Spring and 2.2 km W Bolero Lookout. 285 Comment
  RSA0037247  Calochortus weedii var. intermedius Sandy Leatherman, Melissa Riedel-Lehrke 2013-5-30 2013 -8 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. Comment
  RSA602115  Calycadenia tenella Scott D. White 1997-5-6 5042 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  CHSC70486  Calystegia macrostegia R. A. Schlising 1973-6-25 3104 Orange SW of Corona; along dead-end road 2.1 mi SW of junction with Hwy 71. Comment
  CSUSB667  Calystegia macrostegia R. P. Sunderman 1968-5-11 Orange Beach just south of Corona del Mar Comment
  CSUSB679  Calystegia macrostegia Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  RSA747592  Calystegia macrostegia Fred M. Roberts 2000-5-5 5320 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCR266301  Calystegia macrostegia D. E. Bramlet 2008-3-26 4121 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  JEPS31613  Calystegia macrostegia subsp. arida Alice King April, 1908 Orange Santiago Creek; Santa Ana Mts., Santiago Creek Comment
  SD152880  Calystegia macrostegia subsp. arida Steve Boyd, Tim Ross 1992-5-19 7419 Orange Southern Santa Ana Mountains, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo. 365 Comment
  SD225753  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74 199 Comment
  SD255134  Calystegia macrostegia subsp. arida R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49796 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA135174  Calystegia macrostegia subsp. cyclostegia P. H. Raven 1959-5-5 14057 Orange Mulholland Drive near Beverly Glen. Comment
  RSA394931  Calystegia macrostegia subsp. tenuifolia F. R. Fosberg 1931-6-21 S- 5142 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA697156  Calystegia occidentalis subsp. occidentalis Kenneth Beard s.n. Orange Between Irvine & S.J. Capistrano. Comment
  RSA0008257  Calystegia sepium subsp. limnophila L. M. Booth 1932-6-15 1192 Orange S.E. of Huntington Beach. Comment
  UCR16118  Calystegia soldanella N. J. Moriarty 1973-5-20 730520- 4 Orange Huntington Beach, 0.5 mi. north of Brookhurst Street on the W side of Pacific Coast Hwy (=Hwy 1) Comment
  LA88456  Calystegia soldanella O. H. Kappler; 1943-5-6 411 Orange Huntington Beach Comment
  RSA0039800  Camissonia bistorta Fred M. Roberts, D. E. Bramlet 2003-4-10 5647 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  RSA542488  Camissonia bistorta Fred M. Roberts, G. A., K. G. Marsh 1988-4-26 3937 Orange San Joaquin Hills: Pelican Hill, 0.5km SE summit. 165 Comment
  RSA5801  Camissonia bistorta Carl B. Wolf 1932-6-28 s.n. Orange Cypress, Bryant Ranch near Long Beach, about middle of western boundary of 4 acre Valencia Orange Grove at Bryant Avenue and Hansen Road. 9 Comment
  RSA678499  Camissonia bistorta Fred M. Roberts, Robt. Allen, Carol A. Roberts 2003-5-11 5843 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  RSA72203  Camissonia bistorta F. W. Peirson 1923-3-26 3411 Orange Canada Salada Creek, field about 1/4 mile from beach Comment
  RSA25949  Camissonia californica E. Johnson 1941-5-1 s.n. Orange River bottom, Rancho Santa Ana Comment
  RSA498  Camissonia californica J. T. Howell 1927-6-5 39 Orange Rancho Santa Ana, near east boundary. 152 Comment
  UCR261696  Camissonia californica Dick Newell, Don Millar 2015-5-12 403 Orange Peninsular Range; Santa Ana Mtns. Foothills, Agua Chinon Wash, 1 mile NE of Portola and the 241 Toll Rd./Foothill Transp. Corridor 245 Comment
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  HSC94212  Camissonia cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  IRVC29758  Camissonia cheiranthifolia subsp. suffruticosa Barry S. Nerhus, Mark A. Elvin 2006-11-4 11 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA454022  Camissonia cheiranthifolia subsp. suffruticosa M. B. Dunkle 1933-4-9 3292 Orange Huntington Beach. Comment
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Jan 2 2015
  RSA585054  Camissonia hirtella D. Atwood 1993-3-28 17714 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  UCR191366  Camissonia hirtella A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34624 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  RSA598919  Camissonia ignota Scott D. White 1997-3-28 4847 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA733639  Camissonia micrantha R. H. McArthur 1934-5-19 s.n. Orange Trobuca Canyon. Comment
  JEPS31711  Camissonia strigulosa Alice King March, 1908 Orange Anaheim Plains Comment
  RSA509  Camissonia strigulosa J. T. Howell 1928-4-7 900 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  SDSU3325  Camissoniopsis bistorta Wedberg 1958-3-29 176 Orange Along roadside of Pacific Coast Hwy. south of Laguna and 0.15 mi. north of Dana Pt. Historical Landmark #189. 58 Comment
  UCSB14793  Camissoniopsis bistorta Breedlove, Dennis 1962-3-9 Orange 6.4 miles east of San Juan Capistrano on State 74 121 Comment
  SEINET5344150  Camissoniopsis cheiranthifolia N. J. Hartke 1953-4-2 12 Orange Balboa Beach Comment
  LA206063  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Norman C. Cooper; 1944-6-3 1326 Orange Balboa Beach Comment
  UC1719511  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-26 17699 Orange Corona Del Mar State Park along Newport Coast Drive 0 Comment
  UC635393  Camissoniopsis cheiranthifolia subsp. suffruticosa H. L. Mason 1926-4-25 2919 Orange five mi s Laguna Comment
  CAS-BOT-BC37592  Cardamine californica C. B. Wolf 1931-1-30 1826 Orange Santa Ana Mountains. Claymine Canyon. 304 Comment
  UC537121  Cardaria draba Lawrence M. Booth 1932-5-15 1197 Orange e of Huntington Beach Comment
  CAS-BOT-BC384760  Cardionema ramosissimum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  SD227731  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 I E of I-15 / Hwy 74 jtn. 45 Comment
  CAS-BOT-BC118491  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC118498  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Near Santa Ana Comment
  CAS-BOT-BC118503  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana Comment
  CAS-BOT-BC118505  Carex praegracilis Helen D. Geis 1902-4-1 503 Orange Santa Ana Comment
  CAS-BOT-BC118487  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  CAS-BOT-BC118494  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Santa Ana, Peat lands Comment
  RSA751160  Carex triquetra D. E. Bramlet 2008-5-15 4272 Orange Upper Borrego Cyn. 152m east of the access road & 1.7km west of Santiago Cyn Road 450 Comment
  CDA25905  Carpobrotus chilensis Mark A. Elvin, D. G. Kelch 2006-12-9 5292 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  RSA640969  Carpobrotus chilensis L. C. Wheeler 1931-6-8 s.n. Orange Balboa Comment
  UCR100457  Carpobrotus chilensis B. G. Pitzer 1996-4-30 2768 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA678506  Carpobrotus edulis Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1105 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CDA6921  Carthamus creticus T. C. Fuller 1962-6-7 8872 Orange Near mouth of Rodeo Canyon, Union Oil lease, ca. 3 miles north of Brea. 0 Comment
  CDA6922  Carthamus creticus E. Dudley 1957-6-17 Orange 0 Comment
  CDA6923  Carthamus creticus M. K. Bellue 1945-5-8 Orange Tonner Canyon - Union Oil. 0 Comment
  POM223456  Carthamus tinctorius Albert J. Perkins 1936-6-4 s.n. Orange Santa Ana Comment
  RSA425876  Castilleja affinis Albert J. Perkins 1909-3-1 13722 Orange Orange Co Park. Comment
  RSA0010908  Castilleja affinis Keith E. Hoffmaster 1927-4-8 530 Orange Santa Ana Mountains. Comment
  HSC20518  Castilleja foliolosa S. M. Clapp 1966-4-10 31 Orange 4 mi. into Black Star Canyon 183 Comment
  POM8764  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  JEPS8829  Castilleja minor subsp. spiralis L. M. Booth 1932-8-9 1371 Orange Newport Bay Comment
  POM202724  Castilleja minor subsp. spiralis L. M. Booth 1932-6-28 1217 Orange Bolsas Marsh. Comment
  RSA512755  Castilleja minor subsp. spiralis Walter Wisura, Bart O'Brien, Durant 1990-6-12 4448 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  RSA429526  Caulanthus heterophyllus Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCR222646  Caulanthus heterophyllus D. E. Bramlet 2008-4-1 4145 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, ridgeline in upper Hicks Canyon, 162 m south of the Haul Road 346 Comment
  RSA0119683  Caulanthus lasiophyllus Fred M. Roberts 2015-3-10 7922 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCD114584  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4133 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  CAS-BOT-BC48491  Ceanothus crassifolius T. Cass 1975-4-11 74 -671 Orange Southside Baker Canyon at Santa Ana Nat. forest boundary. 396 Comment
  CAS-BOT-BC48495  Ceanothus crassifolius Marcus E. Jones 1930-3-3 26514 Orange Santa Ana mountains Comment
  RSA67770  Ceanothus crassifolius G. R. Campbell 1951-3-30 16093 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west edge of Cleveland National Forest. 152 Comment
  UCSB31585  Ceanothus crassifolius Proctor, Donald 1962-3-18 Orange Silverado Canyon, Santa Ana Mts, 914 Comment
  RSA733958  Ceanothus integerrimus Keith E. Hoffmaster 1936-5-3 716 Orange Santa Ana Mts (Santiago Peak) Comment
  RSA21234  Ceanothus leucodermis E. R. Johnson 1937-4-6 8505 Orange Rancho Santa Ana, Santa Ana Canyon south of Ranch Buildings. 122 Comment
  RSA30303  Ceanothus leucodermis Carl B. Wolf 1941-8-15 11254 Orange W. slope of Santiago Truck Trail. 4.4 mi. below mai divide motorway. 1067 Comment
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Sep 20 2013
  SD236395  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35301 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi ESE of Walnut Cyn Reservoir. 340 Comment
  IRVC26730  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  UC1070883  Ceanothus megacarpus var. megacarpus A. Lewis 1934-3-1 366 Orange 2.5 mi w Sierra Peak; Corona quad. 609 Comment
  RSA13146  Ceanothus oliganthus Percy C. Everett 1935-6-19 7234 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA748818  Ceanothus palmeri G. Gust, L. Nye 2005-3-12 563 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  UCR158810  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  RSA608242  Ceanothus papillosus var. roweanus Steve Boyd, Bart O'Brien 1998-1-13 10076 Orange Santa Ana Mountains: north end of the range, NW of Pleasants Peak, along Main Divide Road (3S04) ca. 4.9 mi south of Oak Flat, at saddle between Hagador and Baker canyons. 1165 Comment
  SBBG128688  Ceanothus papillosus var. roweanus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49697 Orange Sierra Peak; Santa Ana Mtns Comment
  RSA16580  Ceanothus spinosus Percy C. Everett 1935-6-19 7241 Orange Trabuco Canyon, 0.8mi below (W) forest service patrol station 488 Comment
  RSA542409  Ceanothus spinosus Fred M. Roberts 1989-2-23 4189 Orange Aliso-Wood Canyon Regional Park: Niguel Hill above Aliso Canyon along the northern edge of Sea View Pk., 1.2km ENE Aliso Pk. 250 Comment
  RSA637494  Ceanothus spinosus Valerie L. Soza, LeRoy Gross 1999-6-8 503 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UC718318  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange along Ortega Highway 2/10 mi w Riverside Co. Line (San Juan Canyon); Santa Ana Mts., San Juan Canyon 274 Comment
  SD247720  Ceanothus tomentosus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  LA97592  Ceanothus verrucosus D. S. Verity; Fred Lang 1972-1-7 sn Orange hills behind South Laguna Comment
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Nov 26 2016
  UC30921  Centaurea melitensis C. W. Hamlin 1896-1 Orange Buena Park Comment
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Apr 30 2008
  UCR140799  Centaurea melitensis Robin G. Marushia 2004-5-4 013 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR93176  Centaurea repens Jan West 1994-9-15 s.n. Orange Irvine, Jamboree Rd. 61 Comment
  CAS-BOT-BC284477  Centaurea solstitialis T. C. Fuller 1962-6-7 8869 Orange N. end of Fullerton Golf Course, Fullerton Comment
  IRVC14862  Centaurium venustum Gordon A. Marsh, Karlin G. Marsh 1976-7-8 s.n. Orange Santa Ana Mtns: Lower San Juan Picnic Grounds near Hwy 74 [Ortega Hwy]. Peninsular Ranges Comment
  RSA16384  Centaurium venustum E. R. Johnson 1935-6-11 7132 Orange Rancho Santa Ana, Santa Ana Canyon, grain field west of grapefruit orchard. 137 Comment
  JEPS20077  Centromadia parryi subsp. australis Peter H. Raven 1957-9-28 11376 Orange N limits of Surfside Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  CAS-BOT-BC279501  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange San Juan Canyon, 22 km NE of San Juan Capistrano on Rte. 74 300 Comment
  UC34172  Chaenactis artemisiifolia W. C. Blasdale 1891-6-1 Orange Santiago Canon Comment
  UCR193822  Chaenactis artemisiifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35867 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA695673  Chaenactis glabriuscula L. C. Hull 1934-4-29 s.n Orange Trabuco Canyon Comment
  CAS-BOT-BC283934  Chaenactis glabriuscula var. glabriuscula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  IRVC16152  Chaenactis glabriuscula var. glabriuscula Gordon A. Marsh 1978-5-22 Orange Upper Trabuco Canyon, near Live Oak Canyon Rd.; gravel flood plain. Santa Ana Mountains Comment
  RSA598922  Chaenactis glabriuscula var. glabriuscula Scott D. White 1997-3-28 4852 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA600260  Chamaesyce albomarginata L. C. Wheeler 1947-5-4 6478 Orange 1/2 mi. southwest of Peralta Hills, at Jefferson St. and Santa Ana Canyon Rd. Comment
  IRVC29716  Chamaesyce maculata Mark A. Elvin, Barry S. Nerhus 2006-11-4 5252 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA434  Chamaesyce maculata J. T. Howell 1927-6-21 177 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  RSA542538  Chamaesyce polycarpa var. polycarpa Fred M. Roberts 1988-5-13 3968 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  JEPS52361  Chamaesyce serpyllifolia Alice King May 1908 Orange New Port Comment
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  UCR242704  Chasmanthe floribunda Fred M. Roberts 2010-2-12 7174 Orange South Coast; San Joaquin Hills, Niguel Hill, Laguna Niguel, Sea View Park, 0.2 km WNW summit of Niguel Hill 251 Comment
  UCSB48215  Cheilanthes covillei Roberts, Fred 1981-5-3 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, 0.7km by road N of San Juan Guard Station 244 Comment
  IRVC3132  Cheilanthes newberryi A. S. Boughey 123 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA685784  Cheilanthes newberryi H. H 1915-3-15 s.n. Orange Santiago Canyon 367 Comment
  UCD137350  Cheilanthes newberryi Beecher Crampton 1963-5-7 6788 Orange Santa Ana Mountains, Lower San Juan Canyon, ca. 11 miles northeast of San Juan Capistrano, State Hwy. 74. Comment
  UC582777  Chenopodium album P. A. Munz 1936-6-30 14175 Orange 5 mi s Garden Grove Comment
  IRVC21772  Chenopodium ambrosioides Fred M. Roberts 1984-11-27 1440 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  UC536960  Chenopodium ambrosioides Lawrence M. Booth 1932-7-25 1312 Orange 1 1/2 mi from ocean; Santa Ana River Comment
  POM201674  Chenopodium ambrosioides L. M. Booth 830 Orange Santa Ana Canyon. Comment
  POM6868  Chenopodium ambrosioides P. A. Munz 1919-2-15 2281 Orange Montebello, along Rio Hondo. Comment
  RSA265  Chenopodium ambrosioides var. ambrosioides J. T. Howell 1927-7-18 430 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA678739  Chenopodium californicum Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5856 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA731982  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-8 34774 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA732153  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35022 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCD98106  Chenopodium californicum P. B. Kennedy 1925-1-12 9 Orange Irvine Ranch. Comment
  UCR192453  Chenopodium californicum A. C. Sanders, Fred M. Roberts 2008-3-25 34577 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  UCR209380  Chenopodium californicum Fred M. Roberts, Linda Farley 2008-3-28 7035 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
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Mar 23 2020
  UCR112949  Chenopodium macrospermum B. G. Pitzer 1996-4-30 2785 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR192988  Chenopodium multifidum A. C. Sanders, Fred M. Roberts 2008-6-17 35476 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  CHSC35781  Chenopodium murale James Henrickson 1972-10-21 8057 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. along La Palma Ave., just N. of Santa Ana River. 60 Comment
  RSA696281  Chenopodium murale Keith E. Hoffmaster 1927-02 s.n. Orange Santa Ana. Comment
  CLARK-A1528-977  Chenopodium rubrum Patricia A. Andrews 1975-6-26 Orange Capistrano Bay Beach 9 Comment
  UCR233744  Chlorogalum pomeridianum Fred M. Roberts 2008-6-12 7045 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, along 'Calochortus Ridge' near West Loma Ridge Road north of Haul Road, 2.6 km NW of Bee Peak, Irvine Ranch Land Conservancy 417 Comment
  RSA16337  Chorizanthe fimbriata Percy C. Everett 1935-6-18 7197 Orange Santa Ana Mountains, Main Divide Motorway Los Pinos Potrero. 915 Comment
  UCSB38063  Chorizanthe fimbriata var. fimbriata Roos, John 1965-6-16 Orange Dana Point near Doheney Beach. Comment
  RSA588983  Chorizanthe procumbens D. E. Bramlet 1994-6-2 2379 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244m NE of Little Sycamore Canyon and 488m west of Laguna Cyn. Road. 165 Comment
  RSA785186  Chorizanthe procumbens D. E. Bramlet 1983-5-28 1388 Orange Dana Point, 154 m SW of Pacifc Coast Highway 73 Comment
  SD134406  Chorizanthe procumbens Craig Reiser 1991-4-18 Orange Dana Point Headlands Comment
  UC1952562  Chorizanthe procumbens D. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. Pass area between Little Sycamore and Camarillo Canyons. The site is 945 m north of Camarillo Canyon and 213 m west of Laguna Canyon Road and 5 m west of the existing dirt road. Comment
  UCR4086  Chorizanthe procumbens Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  CLARK-A1528-3607  Chorizanthe staticoides John C. Roos 1937-5-21 1804 Orange Lemon Heights Comment
  RSA584707  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1988-5-26 4009 Orange Rancho Mission Viejo: Christianitos Canyon, c.a. 3.7 km ESE Viejo Survey Mark. 185 Comment
  RSA587875  Chorizanthe staticoides Fred M. Roberts 1990-5-10 4626 Orange Rancho Mission Viejo: Lower Talega Canyon, TRW Lease Holding, c.a. 4.8km NE Clemente Survey Marker. 122 Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  UCR16544  Chorizanthe staticoides P. Healy 1968-5-11 s.n. Orange South Coastal Plains Region, Cameo Shores Rd., Corona del Mar 18 Comment
  UCR192985  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts 2008-5-6 35214 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UCR241918  Chorizanthe staticoides subsp. chrysacantha Fred M. Roberts 2012-5-10 7566 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km north of Pelican Hill summit 154 Comment
  UCR220970  Chrysanthemum coronarium Dick Newell, Don Millar 2010-4-13 19 Orange Peninsular Range; Santa Ana Mtns. Foothills, Portola Parkway at tollroad 241 244 Comment
  UCD130549  Cirsium arvense P. B. Kennedy 1924-2-13 s.n. Orange Huntington Beach District. Comment
  CAS-BOT-BC172422  Clarkia bottae Carl B. Wolf 1932-7-2 3825 Orange Carbon Canyuon, 1/8 mi. below La Vida Springs 213 Comment
  SDSU8634  Clarkia bottae Ruth Haaf, Josephine Morehous 1932-5-28 Orange Carbon Canyon Comment
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Jan 24 2013
  UCR228790  Clarkia bottae Dick Newell, Don Millar 2011-5-24 159 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  RSA631396  Clarkia deflexa Valerie L. Soza, LeRoy Gross 1999-6-7 475 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA648196  Clarkia purpurea subsp. quadrivulnera Karl Price 1988-5-7 27 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  UCR227632  Clarkia rhomboidea Robt. L. Allen 2003-6-22 12309 Orange Santa Ana Mountains, west-facing upper slope of Santiago Peak, along North Main Divide Road, c. 0.10 air mi northwest of Santiago Peak summit 1674 Comment
  RSA761795  Clarkia rhomboidea Robt. Allen 2003-6-22 12260 Orange West-facing upper slope of Santiago Peak, along North Main Divide Road,. circa 0.10 air miles northwest of Santiago Peak summit. Comment
  UCR220083  Claytonia parviflora Dick Newell, Don Millar 2010-3-2 005 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 50 m SE of Sandtrap cutoff, 0.2 mi. west of Santiago Canyon Rd. 294 Comment
  UCR224163  Claytonia parviflora subsp. parviflora Fred M. Roberts 2008-3-19 6779 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  RSA638959  Claytonia perfoliata subsp. perfoliata Valerie L. Soza, LeRoy Gross 1999-6-7 487 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA700034  Clematis lasiantha R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA0061168  Clematis ligusticifolia Robt. Allen 2007-8-11 s.n. Orange Santa Ana Mountains region: Silverado Canyon, Maple Springs Road. 791 Comment
  RSA698567  Clematis pauciflora Minor Warne 1934-4-21 s.n. Orange Blackstar Canyon Laguna Canyon Forks. Comment
  UC1201823  Clematis pauciflora R. W. 1933-4-1 Orange near Capistrano Comment
  RSA3179  Cleome isomeris C. B. Wolf 1932-03 2684 Orange Low bluffs bordering Newport Bay, 1/2 mile N of Corona del Mar. 8 Comment
  RSA752037  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  UCR215281  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  UCSB50632  Clinopodium chandleri Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.: San Juan Canyon, 0.l km N Lower San Juan Picnic Ground 415 Comment
  RSA702764  Cneoridium dumosum Scott D. White, Michael Honer 2004-5-17 10393 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA77080  Cneoridium dumosum F. W. Peirson 1919-11-18 2031 Orange South of Arch Beach, Comment
  UC1130452  Cneoridium dumosum A. Lewis April, 1934 401 Orange Near Arch Beach. Corona 7.5'Q. Comment
  UCSB48359  Cneoridium dumosum Roberts, Fred 1982-6-30 Orange Laguna Niguel: Pacific Island Dr., Niguel Hill, 2.0km SE Aliso Peak; 1.3km E Bench Mark 133 39 Comment
  RSA21803  Cnicus benedictus E. R. Johnson 1937-5-28 8767 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA33582  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA0018459  Collinsia heterophylla J. D. Olmsted 1959-5-1 532 Orange 100 yrds NW of Rattlesnake Rock. 0.75 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi E of Irvine Lake Reservoir. Drainage area to Santa Ana River. 732 Comment
  RSA542503  Collinsia heterophylla Bernard Jaroslow 1989-5-29 B- 27 Orange Santiago Canyon: Along the Morrow Trail out of Live Oak Canyon, below truck trail. Comment
  UCR186683  Conium maculatum T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1904 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  RSA657742  Conium maculatum Ken Greby 1985-4-18 7 Orange N side of Laguna Canyon Rd., 1 km NE of El Toro Rd. 53 Comment
  POM201722  Convolvulus arvensis L. M. Booth 1932-5-26 1126 Orange Newport Bay Comment
  IRVC29834  Convolvulus simulans Tom McCrainie, Mark A. Elvin 2006-9-23 8 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR158170  Convolvulus simulans Adrian Wolf, David Charlton 1998-5-4 200 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  RSA730987  Conyza bonariensis Fred M. Roberts 2006-11-15 6461 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  UC537021  Conyza bonariensis Lawrence M. Booth 1932-6-9 1181 Orange Newport Bay Comment
  IRVC22979  Conyza coulteri Karlin G. Marsh 1986-12-8 none Orange Yorba Linda; Santa Ana Canyon, Santa Ana River, Featherly Park. Santa Ana Mountains Comment
  UCR222858  Conyza coulteri T. B. Salvato 2010-10-27 5139 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR193774  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-7-3 35690 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  RSA412315  Cordylanthus maritimus subsp. maritimus F. R. Fosberg 1930-7-10 S 3176 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
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Nov 5 2007
  RSA412318  Cordylanthus maritimus subsp. maritimus L. M. Booth 1932-7-1 1233 Orange Newport Bay Comment
  UC1536009  Cordylanthus maritimus subsp. maritimus C. W. Tilforth 1975-9-3 1040 Orange ne shoreline Upper Bay (both above and below high water mark); Newport Beach Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA0084756  Cordylanthus rigidus subsp. setiger A. C. Sanders, Fred M. Roberts 2008-7-16 35826 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  UC284871  Cordylanthus rigidus subsp. setiger P. A. Munz 1923-9-7 7745 Orange Santiago Peak Santa Ana Mts. 1645 Comment
  CAS-BOT-BC287839  Coreopsis californica P. A. Munz No date on label 3814 Orange Santa Ana River Canyon, near RIncon 304 Comment
  SD108850  Corethrogyne filaginifolia var. filaginifolia James Henrickson 1972-10-21 8066 Orange Newport Beach, south of Jamboree Road, east of Irvine Coast Country Club near U. C. Irvine. 45 Comment
  RSA731648  Cortaderia selloana Fred M. Roberts 2007-10-29 6631 Orange Laguna Beach: Temple Hill, Nyes Place, c.a. 0.2 km S Moulton Meadows Park. 232 Comment
  JEPS37132  Cotula australis L. M. Booth 1932-5-24 1094 Orange Newport Bay Comment
  UCR237846  Cotula australis Mark A. Elvin 2003-2-2 2275 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  UCR100452  Cotula coronopifolia B. G. Pitzer 1996-4-30 2774 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR96897  Cotula coronopifolia Scott D. White 1993-4-28 1287 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente Comment
  UCSB44179  Cotula coronopifolia Hennema, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  SD134612  Cotyledon orbiculata var. oblonga Reid Moran 1992-8-31 31093 Orange South slope above 1800 Coast Highway, Newport Beach. 14 Comment
  IRVC9154  Crassula connata C. Leavell 1966-3-16 61 Orange El Toro Rd. near Post Office; in open field. El Toro Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA3190  Crassula connata var. erectoides C. B. Wolf 1932-3-8 s.n. Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  POM260477  Cressa truxillensis Ella Carter 1941-08 2 Orange Near coast highway, Newport Beach. Comment
  RSA394757  Cressa truxillensis Albert J. Perkins 1917-11-3 s.n. Orange Santa Ana. Comment
  RSA0011252  Croton californicus Fred M. Roberts, Lee Ann Caranza 2006-10-25 6454 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  SEINET9253017 Image available Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Peninsular Range, Santa Ana Mountains, Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR192728  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  UCR193030  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR191234  Croton setiger A. C. Sanders, Fred M. Roberts 2008-4-22 34984 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA648656  Crypsis schoenoides R. E. Riefner 2000-8-23 20 -731 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  UCSB52903  Crypsis schoenoides Roberts, Fred 1983-9-29 Orange San Joaquin freshwater Marsh; UC Irvine Campus, 1.6 km NNW UCI campus center 2 Comment
  CAS-BOT-BC189255  Cryptantha Helen D. Geis 1902-1-1 515 Orange Unspecified Comment
  RSA0031381  Cryptantha clevelandii Fred M. Roberts 2008-4-8 6852 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  UCR217457  Cryptantha clevelandii Mark A. Elvin 2003-1-26 2226 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  IRVC25394  Cryptantha intermedia Fred M. Roberts 1987-4-3 3343 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  JEPS22385  Cryptantha intermedia John Thomas Howell 1927-6-5 2435 Orange Santa Ana Canyon 152 Comment
  UCR190966  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR223426  Cryptantha intermedia Dick Newell, Don Millar 2011-2-15 058 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  RSA542660  Cryptantha microstachys Fred M. Roberts 1988-4-10 3907 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  UCR191223  Cryptantha microstachys A. C. Sanders 2008-4-29 35127 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA0079591  Cryptantha muricata var. muricata J. T. Howell 1928-2-25 846 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA38626  Cucurbita digitata C. B. Wolf 1943-9-16 11450 Orange Santa Ana Canyon, along Santa Fe R.R. at Yorba Church. 91 Comment
  RSA39346  Cucurbita digitata E. L. Paddock 1948-6-16 12734 Orange N of Sante Fe Railroad Tracks opposite Yorba Cemetery Comment
  SD239717  Cucurbita pepo A. C. Sanders, Fred M. Roberts 2008-9-18 36087 Orange Peninsular Range; Santa Ana Mountains Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge (El Toro 7.5'Q) 299 Comment
  IRVC19540  Cupressus forbesii Karlin G. Marsh 1982-7-30 Orange Coal Canyon, west slope, at Claymont Clay Mine. Santa Ana Mountains Comment
  JEPS19317  Cupressus forbesii John Thomas Howell 1927-8-10 2983 A Orange w of Sierra Peak (at head of Claymine Canon); Santa Ana Mts., Claymine Canon 609 Comment
  POM17861  Cupressus forbesii Philip A. Munz 1923-7-8 7327 Orange Santa Ana River Canyon, 3 miles from county line. Comment
  RSA7199  Cupressus forbesii B. D. Stark 1933-3-17 4532 Orange Claymine Canyon, Santa Ana Mts. 609 Comment
  UCR37801  Cupressus forbesii Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  CAS-BOT-BC224409  Cuscuta californica Carl B. Wolf 1932-7-2 3820 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  UCR193052  Cuscuta californica A. C. Sanders, Mitch Provance 2008-5-20 35405 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  RSA5950  Cuscuta salina C. B. Wolf 1932-7-7 3844 Orange Bixby Ave., 0.6 mile W of Hansen road. 8 Comment
  UCR10366  Cuscuta salina Thomas A. Zink 1971-1 s.n. Orange South Coast, Newport Back Bay near the west end of the water-skiing area 3 Comment
  RSA394863  Cuscuta salina Anstruther Davidson 1907-9-1 1772 Orange Newport Comment
  RSA70998  Cuscuta salina F. W. Peirson 1924-8-29 5080 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UC729888  Cuscuta salina var. papillata Carl B. Wolf 1932-7-7 Orange 0.6 mi w Hansen Rd. (Bixby Ave, Bryant Ranch) 7 Comment
  SD234932  Cuscuta subinclusa A. C. Sanders, F. Roberts 2008-7-3 35688 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder, 1.2 mi. SE of Walnut Canyon Resevoir. 274 Comment
  UCD169765  Cuscuta subinclusa R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  UCR215287  Cuscuta subinclusa Fred M. Roberts, D. E. Bramlet 2008-5-13 6958 Orange Lomas de Santiago, Loma Ridge, north end, west of Sheriff Rd., 1.4 km SE of Peters Canyon Reservoir dam. Irvine Ranch Conservancy 263 Comment
  JEPS59789  Cycloloma atriplicifolium Lawrence M. Booth 1932-8-5 Orange near Huntington Beach (Santa Ana River Channel, 3 mi from ocean); Santa Ana River Channel, near Huntington Beach Comment
  CAS-BOT-BC299754  Cynara cardunculus Le Roy Abrams 1901-6-1 1767 Orange Near Irvine Comment
  UCR48039  Cynara cardunculus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  CAS-BOT-BC299751  Cynara cardunculus Louis C. Wheeler 1932-6-22 850 Orange 1/2 mile N Newport Bay 15 Comment
  CAS-BOT-BC190297  Cynodon dactylon Ira L. Wiggins 1965-9-26 20253 Orange In Carbon Canyon about 3.5 miles above its mouth. Comment
  POM202596  Cynodon dactylon L. M. Booth 1932-5-25 1115 Orange Balboa Island [Newport Bay]. Comment
  RSA688980  Cynodon dactylon Fred M. Roberts, David E. Bramlet 2003-4-10 5638 Orange Rancho Mission Viejo: Donna O'Neill Land conservancy, Back Road, ridge between Cristianitos Cyn, and Segunda Deshecha Canada, 1.45km WNW Gato Gate. 216 Comment
  SD39904  Cynodon dactylon E. A. Purer 1932-8-31 4868 Orange Comment
  UCD60023  Cynodon dactylon Collector Unknown 1924-6-1 s.n. Orange De Tarr. Comment
  RSA734855  Cyperus eragrostis A. C. Sanders, Mitch Provance 2008-5-20 35400 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SD245176  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  UCSB52418  Cyperus eragrostis Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach: east flank of Temple Hill; along east margin of Top of the World School 295 Comment
  UCR247876  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7712 Orange San Joaquin Hills, Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill 113 Comment
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  RSA443819  Cyperus esculentus Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  POM210903  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  UCSB54128  Cyperus esculentus Roberts, Fred 1986-8-9 Orange Yorba Linda; Santa Ana Canyon, Green River Golf Course above Santa Ana River, UTM 3747650mN, 437300mE 124 Comment
  RSA731800  Cyperus involucratus Fred M. Roberts, Sandy Leatherman 2007-11-9 6641 Orange Santa Ana Mtns.: San Juan Canyon along San Juan Creek, 0.2km E community of San Juan Hot Springs. 222 Comment
  RSA5914  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  CAS-BOT-BC114242  Cyperus laevigatus J. Ewan 1931-10-3 5197 Orange Choking stream bed below La Vida Soda Springs, Carbon Canyon. Comment
  SD227676  Cyperus niger ScottD. White, Brian Leatherman 1997-6-12 5320 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site. i.e., ca. 2 to 4 mi E of I-15/ Hwy 74 jtn. 46 Comment
  SD87779  Cyperus niger F. W. Peirson 1924-10-19 5231 Orange Wintersberg; at wates edge in ditches. Comment
  RSA0105083  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona del Mar, beach area west of Morning Canyon Road. 1 Comment
  RSA785389  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11 -83 Orange City of Newport Beach. Beach area west of the end of Cameo Shores Road. South ca. 1 mi from Poppy Ave. 2 Comment
  UCD169090  Cyrtomium falcatum R. E. Reifner Jr. 2011-7-1 11- 83 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1 mi from Poppy Avenue. 1 Comment
  UCD170386  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12- 5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road. 1 Comment
  UCR230584  Cyrtomium falcatum R. E. Riefner Jr. 2011-7-1 11- 83 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  UCR193769  Dactylis glomerata A. C. Sanders 2008-7-3 35717 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  CDA20218  Dactyloctenium aegyptium R. Tiffer 2003-9-4 PDR 1256123 Orange Southwestern California; Santa Ana River bank in Anaheim. 0 Comment
  IRVC27503  Datura stramonium Mark A. Elvin 2004-5-2 3417 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA743455  Datura wrightii Fred M. Roberts 2008-7-10 7075 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA651331  Datura wrightii Candye Koehler 1981-4-11 81 -4 Orange Carbon Canyon Rd. #142 3.3mi. W. of Sleepy Hollow. 244 Comment
  IRVC19407  Daucus carota R. L. Allen 1983-2-8 A 614 Orange Newport Beach: 1935 Highland Street at Kathleen Street. Southern Coastal Comment
  JEPS12251  Daucus pusillus Lawrence M. Booth 1932-5-12 1033 Orange Newport Bay Comment
  RSA678736  Daucus pusillus Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5859 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 Comment
  UCR192069  Daucus pusillus A. C. Sanders, Fred M. Roberts 2008-5-6 35245 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  SD236197  Deinandra fasciculata A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35279 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 299 Comment
  UCR252707  Deinandra fasciculata R. E. Riefner Jr. 2014-5-13 14- 123 Orange South Coast, City of San Clemente, Rancho San Clemente Trail, east c. 0.15 mi. from Ave. Salvador and south c. 0.1 mi. off Utility Access Rd. 239 Comment
  SD247322  Deinandra paniculata R. E. Jr. Riefner 2008-5-19 08 100 Orange Ladera Ranch, Cecil Pasture at Jerome Road; along Bluff Top Trail. 156 Comment
  SFV3981  Deinandra paniculata A. M. Johnson 1932-4-23 4006 Orange Dry hills north of Orange. Comment
  RSA769340  Delphinium cardinale E. W. Lathrop 1974-6-27 7406 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC729868  Delphinium cardinale Carl B. Wolf 1932-7-2 3821 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCR220962  Delphinium parryi Dick Newell, Don Millar, Ashley Nelson 2010-6-8 24 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. at junction with Dripping Springs Rd., 1/2 mile SW of Silverado Rd. and Santiago Rd. 305 Comment
  POM13827  Delphinium patens subsp. hepaticoideum P. A. Munz 1922-4-28 5042 Orange Leach Canyon, Santa Ana Mountains 671 Comment
  RSA221084  Delphinium patens subsp. hepaticoideum E. W. Lathrop 1966-3-23 6107 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA400045  Delphinium patens subsp. hepaticoideum M. B. Dunkle 1950-4-14 5389 Orange San Juan Canyon Comment
  RSA5336  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-4 4488 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  SD247680  Dendromecon rigida subsp. rigida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49702 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCD114656  Descurainia pinnata Rimo Bacigalupi; P. C. Hutchison 1962-3-16 8234 Orange along U.S. 101, 2 miles north of Doheny Beach State Park. Comment
  JEPS53438  Descurainia pinnata subsp. halictorum Alice King Mar 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  RSA751988  Descurainia pinnata subsp. halictorum Fred M. Roberts, Eliza Maher 2008-3-26 6797 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  RSA731938  Digitaria ciliaris Fred M. Roberts, Sandy Leatherman 2007-11-27 6697 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SD237346  Dimorphotheca fruticosa Mark A. Elvin 2003-2-23 2315 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC150283  Diplacus longiflorus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (=Pacific Coast Hwy.) 15 Comment
  CAS-BOT-BC152059  Diplacus longiflorus John Thomas Howell; Alice Eastwood 1937-4-24 3929 Orange 2 miles east of San Juan Hot Springs Comment
  SBBG104037  Diplacus longiflorus B. Pitzer, S. Hemstreet 1992-5-27 1962 Orange road to Blue Jay Group Cmpgrd off St Hwy 74, ca. 2 mi air W of Cariso Cmpgrd Comment
  RSA0045518  Diplacus longiflorus Kenneth Beard 1934-04 s.n. Orange Mts. along Ortega Highway; north of San Juan Hot Springs. CP5. Comment
  SEINET8733132 Image available Diplacus longiflorus Jean Coulson 1959-1 s.n. Orange Santa Anna Mts. Orange County California. 1.1 mi. W. of Orange & Riverside County line on Highway 18. On S. side of road in small depression. Comment
  SD42977  Diplacus puniceus Ethel B. Higgins March 1948 Orange Near San Juan Camp Comment
  RSA0045519  Diplacus puniceus Minor Warne 1934-3-3 s.n. Orange Laguna Canyon Forks. CP5. Comment
  CAS-BOT-BC43548  Diplotaxis muralis Ira L. Wiggins 1965-10-25 20302 Orange Along curb way on Dorothy Lane near corner of Lincoln Avenue, Fullerton. Comment
  POM123  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana, at roadside. Comment
  CAS-BOT-BC195672  Distichlis spicata Carl B. Wolf 1932-7-2 3815 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  UCSB44176  Distichlis spicata Henneman, J. 1977-5-21 Orange Newport Back Bay Comment
  UCSB47954  Distichlis spicata Roberts, D. 1980-5-4 Orange North end of Camino Capistrano Rd; 2nd telephone pole from the end 30 Comment
  UCSB47976  Dodecatheon clevelandii Roberts, Fred 1980-2-17 Orange Along Dana Strand Rd., on the blufff west of Dana Marina (north side of road), Dana Point 56 Comment
  UCSB52469  Draba cuneifolia Roberts, Fred; Marsh, K. 1983-2-25 Orange Laguna Beach, Goff Ridge, southern Temple Hill, 0.9 km NNE Goff Island 180 Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  SBBG52711  Drymocallis glandulosa C. Davidson 1977-5-18 5633 Orange Falcon Cmpgrd, Cleveland Nat Forest 1005 Comment
  IRVC22665  Dryopteris arguta Fred M. Roberts 1985-5-9 1726 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  IRVC23909  Dryopteris arguta Fred M. Roberts, R. L. Allen 1985-8-19 2136 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  RSA124716  Dryopteris arguta E. K. Balls, Percy C. Everett 1957-11-25 22839 Orange Upper Trabuco Canyon, 2.9 mi. ne. from entrance to Holy Jim canyon, 1097 Comment
  RSA749292  Dryopteris arguta Fred M. Roberts 1999-4-21 5175 Orange Lomas de Santiago: Loma Ridge, Limestone Cyn. along Dripping Spgs Rd., at mouth of Dripping Spgs. Cyn., 1.0 km W Silverado Sch. and 4.3 km NNW Bolero Lookout. 311 Comment
  UCR138439  Dryopteris arguta R. E. Riefner Jr. 2000-3-26 20 149 Orange Peninsular Range, Santa Ana Mountains: North Ranch Policy Plan Area, Fremont Canyon, north of major stream fork along west channel drainage 335 Comment
  RSA704080  Dryopteris arguta D. E. Bramlet, Fred Roberts 2003-5-1 3426 Orange Donna O'Neill Reserve. Ephemeral drainage north of the North Ridge trail 457m west of Cristianitos Rd. and 1.07 km north of the E-W access road. 128 Comment
  RSA84221  Dudleya abramsii subsp. parva F. W. Peirson 1924-5-31 4674 Orange 5 miles southeast of Laguna Beach. Comment
Read comments
Dec 20 2019
  CAS-BOT-BC213759  Dudleya edulis Reid Venable Moran 1948-6-23 3097 Orange near mouth of Aliso Canyon, south of Laguna Beach 7 Comment
  RSA588880  Dudleya edulis Fred M. Roberts, D. Bontrager 1990-6-5 4675 Orange Rancho Mission Viejo; Lower Canada Gobernidora, 3.1 km W Point Rancho Survey Marker 112 Comment
  UC2059977  Dudleya edulis K. Nakai 1978-7-17 391 Orange Aliso Canon, ca. 200 yards from California Highway 1. Comment
  RSA278324  Dudleya lanceolata C. W. Tilforth, W. Wisura 1979-5-23 s.n. Orange Mouth of Aliso Canyon, south Laguna. Comment
  UC1015322  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange 1.5 mi above mouth of Laguna Canyon; Laguna Canyon Comment
  UC792937  Dudleya multicaulis Reid Moran 1949-4-11 3216 Orange Emerald Bay Laguna Beach (Laguna Beach) 22 Comment
  UC933212  Dudleya multicaulis Reid Moran 1950-4-24 3387 Orange 0.4 mi above El Toro road junction with Laguna Canyon road (s of El Toro road, Laguna Canyon); Laguna Canyon 91 Comment
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 Comment
  UCR210059  Dudleya pulverulenta A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37192 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC109742  Dudleya stolonifera R. V. Moran 1949-7-2 3287 Orange Near mouth of Aliso Canyon, south of Laguna Beach. Comment
  NY387891  Dudleya stolonifera R. V. Moran 1948-6-23 3095 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10576510  Dudleya stolonifera Reid Moran 1948-1 Orange Comment
  UCSB48031  Dudleya viscida Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 2.3 km. ENE San Juan Guard Station; 0.4 km. W of Bench Mark 1100 315 Comment
  RSA0045323  Echinochloa Keith E. Hoffmaster 1940-7-22 961 Orange Santa Ana Comment
  CAS-BOT-BC197178  Echinochloa crus-galli John Thomas Howell 1928-10-29 3188 Orange Along the highway near Cypress 30 Comment
  RSA731944  Echinochloa crus-galli Fred M. Roberts, Sandy Leatherman 2007-11-27 6691 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UC1543182  Echinochloa crus-galli Donald G. Nelson 1935-6-28 341 Orange W. Orange thorpe Ave. sw Fullerton Comment
  UC729935  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  RSA723490  Echinochloa crus-galli R. E. Riefner 2005-7-9 5 -552 Orange City of Huntington Beach, Huntington Central Park, Goldenwest St. near Slater Ave. 1 Comment
  UC1202111  Echinocystis macrocarpa R. W. 1933-4-1 Orange Near Capistrano Comment
  CAS-BOT-BC445608  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canon [Canyon], San Joaquin Hills 106 Comment
  RSA5918  Eichhornia crassipes E. R. Johnson 1932-6-29 3808 Orange Floating in water, Santa Ana River, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  CAS-BOT-BC112764  Eleocharis macrostachya John Thomas Howell 1927-6-30 2619 Orange Mucky soil of canal bank 7 miles east of Long Beach. 15 Comment
  RSA751523  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts 2008-8-7 35979 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  UCR174181  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33048 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA799812  Eleocharis palustris Justin M. Wood 2011-6-28 4304 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA0117550  Eleocharis rostellata L. M. Booth 1932-6-4 1151 Orange Newport Lagoon. Comment
  CAS-BOT-BC203834  Elymus X hansenii L. R. Abrams 1901-6-1 1814 Orange Santiago Pk. trail Comment
  SEINET10561498  Elymus X hansenii Alvares ALVARES 1814 Orange Santrago P.K. Trail. Comment
  HSC9694  Elymus condensatus J. W. Johnson 1961-3-29 Orange Newport Beach Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA539404  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1988-6-2 4035 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA731987  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  IRVC649  Encelia californica L. Stilgenbauer 1965-3-28 Orange Corona del Mar, MacArthur Blvd. Newport Beach Comment
  POM183951  Encelia californica P. A. Munz 1932-3-29 12185 Orange Costa Mesa. Comment
  RSA278305  Encelia californica C. W. Tilforth, Walter Wisura 1979-5-23 1809 Orange Mouth of Aliso Canyon, south Laguna. Comment
  RSA785305  Encelia californica Doris Bowers 1957-5-16 943 Orange Corona Del Mar 3 Comment
  UCR197698  Epilobium canum A. C. Sanders, Fred M. Roberts 2008-9-18 36084 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  UCSB52396  Epilobium canum subsp. canum Roberts, Fred 1982-9-20 Orange Santa Ana Mts., near jct. of San Juan and Chiquito Basin Trails, 1.4km SW Blue Jay Campground; 2.4km SSE Los Pinos Peak 974 Comment
  RSA72176  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-5-31 4653 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  UC1543090  Equisetum laevigatum Donald G. Nelson 1935-4-6 266 Orange e San Juan Capistrano (canyon 200-300 ft below main Hwy., ca. 4 mi from Summit); Santa Ana Mts., San Juan Canyon Comment
  UCR174026  Equisetum laevigatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33050 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  SD236144  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 299 Comment
  RSA798101  Eragrostis mexicana subsp. virescens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  POM201866  Eremocarpus setiger L. M. Booth 1932-5-12 1021 Orange Newport Bay. Comment
  SEINET7909393  Eriastrum eremicum C. Knight 1967-1 Orange San Juan Capistramo 610 Comment
  UC52799  Eriastrum sapphirinum W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  UCR193057  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-6-17 35505 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA0121315  Eriastrum sapphirinum subsp. dasyanthum L. M. Booth 813 Orange Santa Ana Canyon. Comment
  RSA264442  Ericameria brachylepis C. W. Tilforth 1976-10-21 1227 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
Read comments
Mar 18 2011
  RSA759255  Ericameria cuneata Robt Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak. W Facing slope within 2 meters of the access road up Modjeska Peak. Approximately midway between the peak's south-facing slope and the sharp bend in extreme N end of the road. 1643 Comment
  IRVC763  Ericameria linearifolia D. Christy 1965-5-12 Orange Corona del Mar, Begonia St. Newport Beach Comment
  JEPS19141  Ericameria palmeri var. pachylepis L. M. Booth 1933-10-18 Orange Newport Comment
  JEPS19147  Ericameria palmeri var. pachylepis John Thomas Howell 1927-9-24 3114 Orange Santa Ana Canon Rancho Santa Ana, Santa Ana Canon 152 Comment
  OBI5705  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2504 Orange Hiils on N side of Santa Ana cyn. (Rancho Santa Ana Botanic Garden-ner marker no 14E 9) 207 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  UCR256886  Ericameria parishii Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3157 Orange Peninsular Ranges; Santa Ana Mountains region, Blue Jay Campground 910 Comment
  UCR231187  Ericameria pinifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39937 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  CAS-BOT-BC296140  Erigeron foliosus var. foliosus Le Roy Abrams 1901-6-17 2220 Orange El Toro Comment
  RSA7468  Erigeron foliosus var. stenophyllus C. B. Wolf 1933-8-24 5392 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  UCR247454  Erigeron karvinskianus R. E. Riefner Jr. 2013-1-16 13- 15 Orange South Coast, city of Newport Beach, vicinity of Poppy Ave. and Ocean Blvd., coastal bluff at Little Corona Beach 6 Comment
  RSA696818  Erigeron philadelphicus Anonymous s.n. Orange Moist Shade-Orange Co. Park. Comment
  RSA93112  Erigeron philadelphicus F. W. Peirson 1924-2-9 4522 Orange Between Wintersberg and the sea. Comment
  RSA298672  Eriodictyon crassifolium D. C. Michener 1982-5-24 4043 Orange 8.4 miles north of El Cariso, Orange County. Comment
  RSA550599  Eriodictyon crassifolium Fred M. Roberts 1989-4-26 4315 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  UC171023  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canyon Comment
  UC219277  Eriodictyon crassifolium P. A. Munz and I. M. Johnston 1921-5-18 5316 Orange Santa Ana River Canyon; abundant in bed of side canyon 243 Comment
  CAS-BOT-BC188114  Eriodictyon parryi P. C. Everett 1935-6-18 7216 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  IRVC27014  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange UCI Arboretum Southern Coastal 15 Comment
  POM122566  Eriogonum fasciculatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  CAS-BOT-BC253222  Eriogonum fasciculatum var. fasciculatum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  SEINET253237  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Corona del Mar, Newport Beach, Ocean Bluff. Comment
  SEINET3386503 Image available Eriogonum fasciculatum var. fasciculatum Joseph Ewan 1932-7-28 7705 Orange Corona Del Mar Comment
  UC536912  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-7-27 1326 Orange Ocean Bluff, Corona del Mar Newport Beach, Corona del Mar Comment
  CAS-BOT-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], Santa Ana Canon [Canyon] 152 Comment
  RSA581664  Eriogonum gracile var. gracile Tony Bomkamp 1995-06 s.n. Orange Rancho Santa Margarita, ca. 1/8 mile west of Oso Parkway and 1/8 mile south of Canada Chiquita. Comment
  UC718407  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  SEINET7067535  Eriogonum thurberi A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash west of Orange. Coordinate datum: NAD27. UTM Zone 11, 418503mE, 3739068mN. Comment
  UC912801  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange river bottom s Walnut Grove; Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC297329  Eriophyllum confertiflorum John Thomas Howell 1927-6-26 2592 Orange Claymine Canon, N Santa Ana Mts 243 Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  SEINET2051091 Image available Eriophyllum confertiflorum B. Pitzer 1987-4-24 504 Orange Santa Ana River at Gypsum Canyon, ca. .5 mi. N of Hwy 91. 113 Comment
  SEINET3386759 Image available Eriophyllum confertiflorum F. M. Reed 1925-5-14 4978 Orange Aliso Canyon. 30 Comment
  UCD150983  Eriophyllum confertiflorum D. S. Park 2010-4-25 28 Orange Whiting Ranch Wilderness Park, large population along trail. 224 Comment
  LA203538  Eriophyllum confertiflorum var. confertiflorum W. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA0034727  Erodium cicutarium David Barrios 1991-5-1 6 Orange Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA734013  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA800022  Eryngium aristulatum var. parishii Justin M. Wood 2011-6-28 4301 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA697438  Erysimum capitatum R. H. McArthur 1934-3-25 s.n. Orange Above forks of Black Starr & Santiago Creek bottom Comment
  CAS-BOT-BC402924  Eschscholzia californica Agnes M. Bowman 1899-5-1 s.n. Orange Orange Comment
  OBI11817  Eschscholzia californica Carl B. Wolf 1935-5-19 6873 Orange Santa Ana Mts, Baker Cyn, W Ladd Truck Trl 305 Comment
  RSA0010840  Eucalyptus camaldulensis Fred M. Roberts, Sandy Leatherman 2007-11-27 6673 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  OBI53671  Eucalyptus tereticornis Dave Goodward 1987-4-16 4 Orange Irvine Ranch, Boy Scout Camp in Peters Cyn E of Tustin, 1 mi NE of the Irvine Blvd/Myford rd intersection. In an old plantation 80 yrs old Comment
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR191478  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-8 34750 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR192463  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR281551  Eucrypta chrysanthemifolia Mitch Provance, Jeremiah George 2017-3-20 317- 125 Orange West Coyote Hills, Fullerton, west side of Gilbert Street on land previously occupied by oil fields. 138 Comment
  RSA657747  Eucrypta chrysanthemifolia var. chrysanthemifolia Ken Greby 1985-4-18 11 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 Comment
  RSA0073646  Euphorbia misera Fred M. Roberts 2010-3-12 7175 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA518463  Euphorbia misera Gary D. Wallace 1966-4-30 522 Orange West of Dana Point. Comment
  SD126574  Euphorbia misera Virginia S. Moran, Karen L. Miner 1989-1-29 Orange city of Newport Beach, Corona de Mar State Beach, Little Corona, ca. 1000 meters east of Poppy Ave., on SSW-facing sandy ocean bluff 24 Comment
  RSA734983  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA797403  Euphorbia peplus Keith E. Hoffmaster 1928-5-3 s.n. Orange Santa Ana. Comment
  RSA708284  Euphorbia polycarpa Scott D. White, Jennifer H. Jones 2005-3-31 10857 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  RSA0104833  Euphorbia polycarpa var. polycarpa A. S. Boughey 140 Orange Santa Ana Mountains: Ortega Hwy., ca 1 mi east of San Juan Guard Sta. Comment
  RSA773524  Euphorbia polycarpa var. polycarpa Fred M. Roberts 1999-5-14 5215 Orange Peninsular Ranges; Santa Ana Mts.: Lomas de Santiago, Loma Ridge; Upper Limestone Canyon on slopes above Bolero Spring, 2.4 km NNW Bolero Lookout. 451 Comment
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  IRVC27724  Euphorbia serpens Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA234503  Euthamia occidentalis James Henrickson 1970-9-5 5343 Orange 3 miles NW of Huntinton Beach; NW of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  UCSB47619  Festuca myuros Roberts, Fred 1980-4-3 Orange Hills; 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA708733  Ficus carica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6118 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  CAS-BOT-BC502094  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -380 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St, and W. Cypress St., near jct. of N. Lemon St., and W. Cypress St. 44 Comment
  RSA0116287  Ficus microcarpa R. E. Riefner Jr. 2015-8-30 15 -376 Orange City of Anaheim, Pearson Park, near center of park, N of North Helena St. and West Cypress St. 45 Comment
  UC2046885  Ficus microcarpa R. E. Riefner Jr. 2014-2-24 14 -66 Orange City of Dana Point, W ca. 0.1 mi from Island Way along Dana Point Harbor Dr., cliff immediately S of Santa Clara Ave. and Amber Lantern St. Comment
  CDA22222  Ficus rubiginosa D. G. Kelch 2006-12-9 6 .565 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR191334  Filago californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34649 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA542432  Filago gallica Fred M. Roberts 1988-4-10 3909 Orange Lomas De Santiago: Loma Ridge, 1.0 kilometer N Bolero Lookout. 415 Comment
  RSA542431  Filago gallica Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3938 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  UCSB48223  Foeniculum vulgare Roberts, Fred 1981-6-22 Orange Rancho Mission Viejo; Calif. Rte. 74, 5.2 km. ENE San Juan Capistrano by road 100 Comment
  POM201618  Foeniculum vulgare L. M. Booth 1932-8-5 1346 Orange West Newport Beach. Comment
  UCSB48032  Frangula californica subsp. californica Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.3km ENE San Juan Guard Station; 0.4km W Bench Mark 1100 315 Comment
  LA207689  Frangula californica subsp. cuspidata P. C. Everett; 1935-6-18 5451 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  LA207696  Frangula californica subsp. cuspidata C. B. Wolf; 1933-8-24 5391 Orange Santa Ana Mountains, summit of Santiago Peak 1731 Comment
  RSA660593  Frangula californica subsp. cuspidata R. E. Riefner 2000-8-8 20 -718 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  POM2924  Frankenia grandifolia D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  RSA391397  Frankenia grandifolia Ella M. Kennedy 1923-5-14 s.n. Orange Laguna Beach. Comment
  RSA0039580  Frankenia grandifolia Elbert Benjamine 1929-5-14 239 Orange Sunset Beach. Comment
  RSA80823  Frankenia grandifolia var. campestris F. W. Peirson 1924-5-31 4659 Orange Laguna Canyon near Laguna Beach 91 Comment
  IRVC8591  Frankenia salina Paul Fishman, Hayden R. Williams 1969-9-23 980 Orange Upper Newport Bay: below East Bluff. Southern Coastal 2 Comment
  UCR154350  Frankenia salina Mark A. Elvin 2004-5-2 3402 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR261702  Frasera parryi Dick Newell, Judy Booth 2014-5-26 377 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, upper Long Canyon Rd., 1.3 mile NW of El Cariso Hotshot Camp 996 Comment
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  RSA113855  Fraxinus dipetala E. K. Balls 1956-3-26 21464 Orange 0.5 miles below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  RSA114720  Fraxinus dipetala E. K. Balls, Percy C. Everett 1955-4-1 20411 Orange Madrone Canyon, Orange County, site of Botanic Garden. Silverado Canyon, 0.5 mile below Silverado Motorway, W slope os Santa Ana mts. 640 Comment
  RSA12722  Fraxinus dipetala Carl B. Wolf 1934-9-21 6139 Orange Silverado canyon, 1/2 mile below Silverado Motorway, W slope of Santa Ana Mts. 640 Comment
  RSA5342  Fraxinus dipetala B. D. Stark, C. W. Tilforth 1933-1-4 4495 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  CAS-BOT-BC218564  Fraxinus velutina E. R. Johnson 1933-7-6 5170 Orange Santa Ana River, Santa Ana Canyon, Rancho Santa Ana 121 Comment
  SBBG120620  Fraxinus velutina A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33043 Orange San Juan Cyn from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 and near Riverside Co line 366 Comment
  RSA1491  Fritillaria biflora E. R. Johnson 1929-4-11 s.n. Orange Sierra Peak Trail. Comment
  RSA649055  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA773508  Fritillaria biflora Fred M. Roberts 1999-4-26 5202 Orange Lomas de Santiago: ridge between Santiago Creek wash and Limestone Canyon, 3.8 km W Bee Peak and 1.7 km SSE Silverado School 409 Comment
  RSA567  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-6-3 19 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA700193  Galium angustifolium L. C. Hull 1934-4-24 s.n. Orange Trabuco Canyon. Comment
  SEINET7067519  Galium angustifolium A. G. Vestal 1947-6-12 s.n. Orange Upper San Juan Canyon on Route 74 to Lake Elsinore in Cleveland National Forest. Coordinate datum: NAD27. UTM Zone 11, 452352mE, 3716538mN. Comment
  UCR240085  Galium angustifolium Dick Newell, Judy Booth 2012-6-3 264 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  UCSB52456  Galium angustifolium Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd; 0.8 km S Richard Henry Dana School 18 Comment
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Oct 28 2018
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  RSA67768  Galium angustifolium subsp. angustifolium G. R. Campbell 1951-5-30 16095 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest 152 Comment
  UC1143131  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Cleveland National Forest, Elsinore Quadrangle 1219 Comment
  UC578648  Galium angustifolium subsp. angustifolium A. Lewis May 1934 411 Orange Trabucco Canyon Elsinore Quadrangle 1219 Comment
  UC729870  Galium angustifolium subsp. angustifolium Carl B. Wolf 1932-7-2 3827 Orange 1/8 mi below La Vida Springs; Carbon Canyon 213 Comment
  UCSB47621  Galium aparine Roberts, Fred 1980-4-3 Orange Dana Point: hills, 1.0km NE Dana Hills High School 75 Comment
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Oct 28 2018
  UCSC001312  Galium aparine Peter Kamb 1948-6-19 1091 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA734901  Galium parisiense A. C. Sanders 2008-5-28 35436 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  UCR215296  Galium parisiense Fred M. Roberts 2008-5-20 7133 Orange Lomas de Santiago, Loma Ridge, upper Limestone Canyon, 0.8 km NW of Bolero Spring and 3.1 km WNW of Bolero Lookout. Irvine Ranch Conservancy 467 Comment
  POM4414  Galium porrigens Philip A. Munz 1918-5-4 2215 Orange Laguna. Comment
  POM47660  Galium porrigens F. W. Peirson 1924-5-31 4665 Orange 5 miles southeast of Laguna Beach Comment
  CHSC116473  Garrya flavescens subsp. pallida R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA101783  Garrya flavescens var. pallida R. Weatherby 1950-2-25 1023 Orange Harding Canyon, Santa Ana Mountains. 579 Comment
  RSA391430  Garrya veatchii Christopher Davidson 1977-5-18 5605 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  CDA5144  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1943-8-31 Orange 1 mile north of Fullerton, Brea. 0 Comment
  CDA5146  Gaura coccinea Margaret Bellue, Andreas, E. L. Paddock 1943-8-31 Orange Brea Road, 1 mile north of Fullerton. 0 Comment
  UCR182326  Gaura drummondii E. Johnson 1939-8-3 s.n. Orange South Coast, Brea 122 Comment
  CDA5174  Gaura drummondii Margaret Bellue 1943-9-1 Orange Sterns, 3 miles east of Yorba Linda. 0 Comment
  CDA5176  Gaura drummondii Johnson 1939-8-1 Orange North Whittier Heights. 0 Comment
  SD43416  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road, 0.25 mile west of Puente Street; Brea. Comment
  CDA5237  Gaura sinuata T. C. Fuller 1962-6-7 8873 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  RSA759533  Genista Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon community, circa 50 meters below Forest Gate. Within 2-10 m of access road 640 Comment
  CAS-BOT-BC226941  Genista canariensis Julio Abugarade 2012-4-27 s.n. Orange Color Spot Nurseries, 31101 Ortega Hwy, San Juan Capistrano 98 Comment
  RSA0127604  Geranium carolinianum Fred M. Roberts 2016-3-25 8034 Orange San Joaquin Hills: Bommer Canyon, west slope near south end fo Nature Loop Trail, 0.1 km NW Cattle Camp and 1.6 km NE summit of Signal Peak. 146 Comment
  SBBG132272  Geranium carolinianum S. D. White, B. Leatherman 1997-5-6 5037 Orange unnamed tributary to Santiago Crk flowing from the SW, directly W of "Pancho Cyn" "Lomas de Santiago" S179 366 Comment
  JEPS69445  Gilia angelensis Alice King March 1908 Orange Anaheim Plains Comment
  RSA732081  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SD27976  Gilia angelensis Carl B. Wolf 1932-3-8 2674 Orange 0.5 mile north of Corona Del Mar; borders of Newport Bay. 7 Comment
  RSA606304  Gilia angelensis Jon E. Keeley 1994-4-5 25269 Orange First year burn, east end of Casper Park S5 (Keeley, 1994) 390 Comment
  RSA698339  Gilia capitata Anonymous 1932-5-1 s.n. Orange Field weed near Anaheim. Comment
  UCR193468  Gilia capitata A. C. Sanders, T. B. Salvato 2008-5-13 35339 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA39114  Gladiolus italicus E. L. Paddock 1947-4-19 12289 Orange Walnut grove in Santa Ana (north side of Manchester, half way between Flower and Main Streets also on east 17th St., 0.3 mile east of Grand) Comment
  IRVC16624  Glycyrrhiza lepidota Gordon A. Marsh, K. G. Marsh 1979-5-28 Orange Horseshoe Bend, Weir Canyon Ranch, Santa Ana Valley Irrigation Co.; along irrigation ditch. Santa Ana River Comment
  POM18135  Gnaphalium beneolens P. A. Munz 1923-9-7 7765 Orange Santa Ana Mts. From Holy Jim Canyon to Santiago Peak. 1067 Comment
  IRVC449  Gnaphalium bicolor B. Simpson 1965-5-1 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC441  Gnaphalium bicolor B. Savage 1965-5-15 Orange Newport Beach Comment
  RSA588723  Gnaphalium californicum Fred M. Roberts 1990-5-7 4607 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR197679  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-9-18 36068 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM202609  Gnaphalium chilense L. M. Booth 1932-7-19 1275 Orange Bolsas Marsh. Comment
  RSA573302  Gnaphalium leucocephalum Steve Boyd 1994-9-14 8359 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA528039  Gnaphalium microcephalum A. C. Sanders 1990-10-6 10194 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UCR237827  Gnaphalium microcephalum Mark A. Elvin 2003-2-2 2266 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA701690  Gnaphalium palustre Fred M. Roberts, David E. Bramlet 2003-6-6 5898 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA734646  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2008-5-13 35360 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA0054863  Gnaphalium palustre Ophelia Frost 1932-5-2 s.n. Orange Along a dirt road, 2 miles east of H. B. Comment
  CLARK-A1528-1859  Gnaphalium peregrinum John C. Roos 1965-6-16 Orange Dana Point Comment
  POM201780  Gnaphalium ramosissimum L. M. Booth 1932-7-27 1321 Orange Corona del Mar, Newport Beach, Bluff Ravine Comment
  UCR100580  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2764 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR158151  Gnaphalium stramineum Adrian Wolf 1998-5-27 340 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR93932  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2800 B Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA698236  Godetia purpurea Kenneth Beard s.n. Orange East of Irvine Park. Comment
  UCR188934  Grevillea robusta Robert DeRuff 2005-1 345 Orange Newport Beach, Upper Newport Bay, beyond the east end of Mesa Drive 3 Comment
  SD28098  Grindelia camporum Carl B. Wolf 1932-7-2 3810 Orange Opposite Olinda Pilgrim Church. Comment
  UCR107447  Grindelia camporum B. G. Pitzer, M. Georgiady 1997-4-5 3086 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR242757  Grindelia camporum Fred M. Roberts 2012-5-10 7578 Orange SAN JOAQUIN HILLS: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit 154 Comment
  IRVC746  Grindelia camporum var. bracteosa L. Stilgenbauer 1965-4-5 Orange Corona del Mar, in field near Cameo Shores Rd. Newport Beach Comment
  POM4604  Grindelia camporum var. bracteosa D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach Comment
  HSC79615  Grindelia hirsutula James Henrickson 1972-10-21 8070 Orange Newport Beach, S of Jamboree Rd., E of Irvine Coast Country Club near U. C. Irvine 46 Comment
  UC455831  Grindelia hirsutula I. J. Condit 1908-7-25 Orange Huntington Beach Comment
  UC897086  Grindelia hirsutula Julian A. Steyermark 1933-10-29 Orange San Clemente, Orange Co., on clay soil of coastal mesa. Comment
  RSA264441  Gutierrezia californica C. W. Tilforth 1976-10-21 1226 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA735171  Gutierrezia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35288 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  RSA868  Gutierrezia californica J. T. Howell 1927-11-6 802 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR103284  Haplopappus venetus B. G. Pitzer, T. Tennant 1997-11-8 3377 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA0066585  Harpagonella palmeri Fred M. Roberts 1993-4-23 4855 Orange Mission Viejo: Mesa just W of Bridgeton Road near jct. of Ridgemark above Arroyo Trabuco, 4.8 km NNE Trabuco Survey Marker. 152 Comment
  NY387959  Hasseanthus elongatus L. Abrams 06 1901 1785 Orange San Joaquin Hills. Comment
  RSA232067  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange Along County Rd. S19, between Cooks corner and O'Neil Park Comment
  RSA871  Hazardia squarrosa var. grindelioides J. T. Howell 1927-10-22 758 Orange Bluffs near eastern boundary, Rancho Santa Ana 213 Comment
  RSA743465  Hedera helix Fred M. Roberts, Carol A. Roberts 2008-9-28 7115 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  HSC93899  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  RSA113254  Hedypnois cretica E. K. Balls 1955-4-4 20433 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA602118  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  SD152934  Hedypnois cretica Steve Boyd, Tim Ross 1992-5-20 7462 Orange Southern Santa Ana Mountains; western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail and spur trail to old mining habitations. 305 Comment
  UCR150613  Hedypnois cretica Scott D. White 1997-5-6 5045 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh Comment
  UCR103708  Helenium puberulum B. G. Pitzer, T. Tennant 1997-11-8 3363 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  CAS-BOT-BC402190  Helianthemum scoparium R. F. Thorne; E. W. Lathrop; W. Wisura 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  UC537024  Helianthus annuus Lawrence M. Booth 1932-6-29 1230 Orange Newport Bay Comment
  UCSB48037  Helianthus annuus Roberts, Fred 1981-9-26 Orange Laguna Beach: Pacific Coast Highway, 1.1km SE El Moro School near Abalone Point 39 Comment
  UC774875  Helianthus ciliaris E. L. Paddock 1941-8-1 Orange 2 mi e Brea; Graham-Loftus property Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  UCD132778  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El toro, around 11 miles southeast of Tustin. Comment
  CHSC26505  Heliotropium curassavicum Roger Shelby 1970-8-22 Orange Ca. 3 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. on Pacific Coast Hwy. in Bolsa Bay area. In salt marsh. 0 Comment
  SEINET3083751 Image available Heliotropium curassavicum Janice Hollinger 1972-4-16 720416 -5 Orange Santa Ana River bottom, off Coal Canyon Road. Comment
  CSUSB741  Heliotropium curassavicum var. oculatum Dave Cerf 1971-5-2 Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  RSA5867  Hemizonia australis C. B. Wolf 1932-9-13 4019 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave. (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  IRVC14670  Hemizonia fasciculata A. S. Boughey 1968-7-16 424 Orange road to Signal Peak. San Joaquin Hills Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  POM360262  Hemizonia fasciculata F. R. Fosberg 1930-7-10 455 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM5971  Hemizonia fasciculata D. L. Crawford 1915-09 504 Orange Huntington Beach. Comment
  RSA5916  Hemizonia fasciculata C. B. Wolf 1932-7-2 3811 Orange Orange County, Valencia Ave, Olenda, opposite the Olinda Pilgrim Church 152 Comment
  RSA702702  Hemizonia fasciculata Scott D. White, Michael Honer 2004-5-17 10386 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  UCR191218  Hemizonia fasciculata A. C. Sanders 2008-4-29 35142 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR82801  Hemizonia fasciculata O. F. Clarke 1994-6-17 s.n. Orange Laguna Canyon Comment
  RSA74880  Hemizonia fasciculata Elroy Robinson 1935-6-26 s.n. Orange Along Santa Fe Railway, El Toro, south of Los Angeles. Comment
  RSA542437  Hemizonia paniculata Fred M. Roberts 1988-7-29 4125 Orange Aliso Viejo: Upper Wood Canyon, 1.5 km N Moulton Peak. 165 Comment
  LA26011  Hemizonia parryi subsp. australis David D. Keck; 1933-9-29 2537 Orange Seal Beach Comment
  UCR98232  Hesperocnide tenella B. G. Pitzer 1997-4-15 3138 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  SD40680  Hesperocyparis forbesii Carl B. Wolf 1935-1-2 Orange Santa Ana Mountains, slopes of Sierra Peak, west of Claymine Canyon along road to peak 669 Comment
  CAS-BOT-BC167001  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  SD42379  Heteromeles arbutifolia P. C. Everett 1936-1-25 7697 Orange Santa Ana Canyon, Rancho Santa Ana, from a wild plant in the Palm Canyon in the Botanic Garden 182 Comment
  UCR239808  Heteromeles arbutifolia O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  RSA0072398  Heteromeles arbutifolia Percy C. Everett 1936-1-25 7697 Orange Santa Ana Canyon, Rancho Santa Ana. In Palm Canyon in the Botanic Garden. 183 Comment
  RSA0072399  Heteromeles arbutifolia Carl B. Wolf, B. D. Stark 1932-12-19 4430 -A Orange Santa Ana Mts: 1/2 mile from Skyline Drive on firebreak road to Sierra Peak. 762 Comment
  UCSB47998  Heteromeles arbutifolia Roberts, Fred 1980-7-7 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 345 Comment
  CAS-BOT-BC318906  Heterotheca grandiflora Ira L. Wiggins 1965-10-24 20284 Orange Roadside along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  UCR12562  Heterotheca grandiflora J. S. Davis 1972-5-6 720506- 28 Orange South Coast, Newport Beach. 3.2 mi N on Back Bay Road from corner of San Jaquin Hills Road in roadside turnout 6 Comment
  RSA0075812  Heterotheca grandiflora R. E. Riefner 2000-8-8 20 -716 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  CHSC30405  Heterotheca sessiliflora T. B. Devine 1980-4-2 620 Orange On Back Bay Dr. E. of Upper Newport Bay ca 2 mi. N. of jct. with Jamboree Rd. Comment
  RSA483123  Hirschfeldia incana Josephine Derigo 1941-7-25 s.n. Orange Anaheim. Comment
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  JEPS65636  Hoita orbicularis Alice King April, 1908 Orange near Santa Ana; Santa Ana River Comment
  SEINET6654708  Holocarpha virgata subsp. elongata R. E. Riefner Jr. 2003-10-14 03 -421 Orange San Clemente State Beach, mima mound field in SW corner of park.; 0 27 Comment
  LA207960  Holodiscus discolor W. E. Pequegnat; 1937-8-11 59 Orange Santa Ana Mountains, N side Santiago Peak 1725 Comment
  RSA7466  Holodiscus discolor Carl B. Wolf 1933-8-24 5390 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  UC592904  Holodiscus discolor C. B. Wolf and E. R. Johnson 1933-11-3 5527 Orange on road to Santaiago Peak, Santa Ana Mountains, Main Divide Motorway, Modjeska Peak Santaiago Peak; Santa Ana Mountains, Main Divide Motorway, Modjeska Peak 1524 Comment
  RSA0027774  Holodiscus discolor var. franciscanus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49690 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA728662  Hordeum brachyantherum R. E. Riefner 2002-5-4 2 -101 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. 254 Comment
  POM1305  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna. Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  UCD85590  Hordeum depressum A. A. Beetle 1942-4-19 3094 Orange 20 miles S of Santa Ana, road to Laguna. Comment
  SBBG119309  Hordeum intercedens D. Bramlet 1998-5-20 2622 Orange San Juan Hills, ca. 488 m W of La Pata Ave and 1.22 km N of Prima Deshecha Canada; ca. 457 m E of the old ridgeline rd Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR158162  Hordeum intercedens Adrian Wolf, David Charlton 1998-5-4 197 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR168468  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-15 3436 Orange Donna O'Neill Reserve, SE corner of Reserve 152 m west of Cristianitos Road and 731 m N of Pico, 122 m NW of the SDGE Substation 98 Comment
  UCR267436  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mtns. Foothills, upper watershed of Deep Canyon, 1300 ft. east of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft. south of Avenida Placida, west of the Prima Deshecha landfill 201 Comment
  UCR217289  Hordeum murinum Mark A. Elvin 2003-3-30 2393 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCR237819  Hordeum murinum Mark A. Elvin 2003-2-2 2284 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA697739  Hordeum murinum Elisabeth Norland 1929-3-16 s.n. Orange Santa Ana Co. Club. Comment
  RSA701209  Hordeum murinum Keith E. Hoffmaster 1927-3-25 s.n. Orange Santa Ana. Comment
  HSC94292  Hordeum murinum subsp. murinum D. Atwood 1993-3-28 17710 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
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Jul 8 2010
  RSA789353  Horkelia cuneata subsp. puberula Naomi S. Fraga, Duncan S. Bell 2009-5-11 2720 Orange Chiquita Trail 762 Comment
  UC582823  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach Mt. Olympus 152 Comment
  CAS-BOT-BC537313  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  RSA792565  Hornungia procumbens Justin M. Wood 2011-2-28 3272 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  RSA699285  Hydrocotyle umbellata J. R. Bruff 1930-10 s.n. Orange Santa Ana River, 1st Street. Comment
  RSA80329  Hydrocotyle umbellata J. T. Howell, F. Peirson 1927-8-13 7687 Orange Santa Ana River, Rancho Santa Ana, eastern end of Orange County. Comment
  UCSB56516  Hypericum canariense Roberts, Fred 1983-5-26 Orange Dana Point Headlands; 0.5km NW Dana Point Harbor; 0.4km S Richard Henry Dana School; on south side of Pacific Coast Highway 22 Comment
  IRVC14741  Hypochaeris glabra A. S. Boughey 1968-4-23 205 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC814  Hypochaeris glabra C. Thompson 1965-4-12 Orange Laguna Hills Comment
  RSA732247  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-4-22 34998 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  RSA749428  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  UCR209349  Hypochaeris glabra Fred M. Roberts 2008-4-14 6892 Orange Santa Ana Mountains, Upper Weir Canyon, east fork, 3.4 km eat of Robbers Peak, Irvine Ranch Conservancy 433 Comment
  IRVC26523  Hypochaeris radicata Mark A. Elvin 2004-2-22 3148 Orange UCI Arboretum Southern Coastal 15 Comment
  POM294117  Isocoma menziesii var. decumbens Lyman Benson 1946-5-13 12097 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA184129  Isocoma menziesii var. menziesii I. L. Wiggins 1965-10-27 20305 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  POM294112  Isocoma menziesii var. vernonioides Lyman Benson 1946-7-8 12105 Orange Corona del Mar. 15 Comment
  RSA728657  Isocoma menziesii var. vernonioides R. E. Riefner 2006-10-24 04 -449 Orange City of Costa Mesa; E of Santa Ana River, NW 0.2 mi from Balboa Blvd and 19th St. 10 Comment
  CAS-BOT-BC112434  Isolepis cernua Mark A. Elvin; D. Kelch 2006-12-9 5302 Orange Southern Coastal: Newport Backbay, Big Canyon, lower end. 3 Comment
  RSA757058  Isolepis cernua O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange Newport Back Bay 3 Comment
  UCSB70085  Isolepis cernua Sanders, A. 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  CSUSB713  Isomeris arborea R. P. Sunderman 1968-5-11 Orange Beach just south of Corona del Mar Comment
  IRVC307  Isomeris arborea D. Christy 1965-5-3 Orange [Newport] Back Bay. Newport Beach Comment
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  UCR222627  Isomeris arborea T. B. Salvato 2010-10-27 5104 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  CAS-BOT-BC334207  Iva hayesiana R. E. Riefner, Jr. 2013-8-30 13 -206 Orange City of Huntington Beach, N of Pacific Coast Hwy along the Santa Ana River Trial, W side Santa Ana River 7 Comment
  UCR247919  Iva hayesiana Fred M. Roberts 2012-7-18 7670 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  RSA234472  Jaumea carnosa James Henrickson 1970-7-25 5040 Orange 2.5 miles NE of Huntington beach, 1 mile SE of Warner Ave. on sandy slope of E. Pacific Coast Hwy. at border of Bolsa Chica Salt Marsh. 0 Comment
  RSA84405  Jepsonia parryi F. W. Peirson 1919-11-8 1941 Orange South of Arch Beach, near Laguna Beach Comment
  UCR274179  Jepsonia parryi Dick Newell, Don Millar 2015-10-20 411 Orange South Coast, San Joaquin Hills, Buck Gully in foothills, Newport Beach 0.14 mile due south of San Joaquin and 0.43 mile SW of upper trailhead 132 Comment
  CAS-BOT-BC101918  Juglans californica Ira L. Wiggins 1965-10-27 20310 Orange stream near Los Angeles County Line, along Brea Canyon Road Comment
  LA205692  Juglans californica C. B. Wolf; 1934-9-21 6141 Orange Brea Canyon, lower end of canyon, Puente Hills 600.0 +- ft Comment
  RSA0043360  Juglans californica Fred M. Roberts 2013-8-8 7802 Orange Peninsular Ranges. SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  RSA226639  Juglans californica Christopher Davidson, B. Benny 1971-6-15 1555 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  UCR247895  Juglans californica Fred M. Roberts 2013-8-9 7802 Orange Peninsular Ranges, SANTA ANA MTNS.: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.8 km ENE Silverado School and 1.5 km up stream Black Star Road crossing. 325 Comment
  RSA0011057  Juglans californica J. R. Bruff 1936-11 s.n. Orange Durant St. Santa Ana. Comment
  RSA791495  Juglans californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  UCR246398  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10- 121 Orange South Coast, city of Laguna Beach, Laguna Canyon, c. 0.15 mi south of El Toro Road on east side of Laguna Canyon Road 75 Comment
  SD255201  Juglans regia R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49798 Orange Santa Ana Mountains: Trabuco Canyon, below Yaeger Mesa. Comment
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  UCR207558  Juncus acutus O. F. Clarke 2004-6-23 s.n. Orange South Coast, Newport Back Bay, just south of the Muth Interpretive Center 15 Comment
  OBI2855  Juncus acutus subsp. leopoldii L. Neuenschwander 1970-8-20 63 Orange Ca. 4 mi S of Seal Beach, NE of Pacific Coast hwy at Bolsa Chica Salt marsh 0 Comment
  UC1280019  Juncus acutus subsp. leopoldii Peter H. Raven 1957-9-28 11401 Orange just n Huntington Beach Comment
  RSA735751  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-6-17 35492 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff s Training Facility, just east of Hwy 241 280 Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  RSA103  Juncus bufonius J. T. Howell 1928-4-14 915 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  UCR157713  Juncus bufonius Adrian Wolf 1998-5-15 274 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  RSA0014071  Juncus macrophyllus Fred M. Roberts, R. E. Riefner 2010-5-30 7024 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  UCR217667  Juncus macrophyllus Fred M. Roberts, R. E. Riefner Jr. 2008-5-30 7024 Orange South Coast, Lomas de Santiago, Loma Ridge, Hanging Man's Tree Canyon, along Hanging Man's Tree Canyon Road, c. 0.4 km west of Santiago Canyon Road and 1.23 km north of Bolero Lookout 372 Comment
  RSA663202  Juncus rugulosus R. E. Riefner 2000-3-26 20 -151 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  UCR133215  Juncus sphaerocarpus W. W. Wright 1974-4-22 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA788802  Juncus textilis Robert F. Thorne 1977-11-21 49984 -a Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  JEPS67112  Juncus torreyi S. B. Parish and W. F. Parish Oct 1882 1593 Orange Orange Comment
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Jul 18 2010
  UCSB48006  Juncus xiphioides Roberts, Fred 1980-7-11 Orange Santa Ana Mtns; Viejo Canyon; 3.0 km ENE San Juan Guard Station; 0.7 km N Hwy 74 355 Comment
  CAS-BOT-BC383068  Juniperus rigida var. conferta R. E. Riefner, Jr. 2014-3-17 14 -72 Orange City of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  UCR275232  Juniperus virginiana Robert DeRuff 1998-1 508 Orange South Coast, upper Newport Bay, below and north of intersection of Back Bay Dr., with Eastbluff Dr. 3 Comment
  CAS-BOT-BC235489  Keckiella antirrhinoides Jenkins 1929-2-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  POM6386  Keckiella antirrhinoides Philip A. Munz, Street, Williams 1919-5-3 2621 Orange Santa Ana River Canyon. Comment
  RSA612318  Keckiella antirrhinoides Louis C. Wheeler 1932-7-9 943 Orange Santa Ana River 5 miles below Prado. 152 Comment
  UCR193025  Keckiella cordifolia A. C. Sanders, Fred M. Roberts 2008-6-17 35516 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR227631  Keckiella cordifolia Robt. L. Allen 2003-6-22 12288 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divide Road 1523 Comment
  SD245486  Keckiella cordifolia Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49620 Orange Santa Ana Mountains: about 1 mile above San Juan Fire Station. Comment
  LA209317  Keckiella ternata W. E. Pequegnat; 1937-8-11 18 Orange Santa Ana Mountains, Santiago Peak 1188 Comment
  JEPS11336  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  RSA184078  Kochia scoparia I. L. Wiggins 1966-4-3 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. Comment
  RSA753162  Koeleria macrantha D. E. Bramlet 2008-4-28 4245 A Orange East Fork of Upper Weir Cyn, 1.2km east of the main Cyn. & 91m W of the upper boundary of Gypsum Cyn. 409 Comment
  UCR243183  Koeleria macrantha Chris E. True, Sara Jo Dickens 2013-4-30 s.n. Orange Aliso Canyon, Aliso and Wood Canyons Park, south of Aliso Viejo 61 Comment
  RSA0069226  Koelreuteria bipinnata Fred M. Roberts 2008-9-3 7081 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  UCR266665  Koelreuteria bipinnata Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7081 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA5802  Lactuca serriola C. B. Wolf 1932-6-28 3780 Orange Along western half of no. boundary of 40 acre Valencia Orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA759155  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR7865  Lagophylla ramosissima O. F. Clarke 1968-7-28 s.n. Orange Santa Ana Mtns, Between Los Pinos Job Corps Camp and locked forestry gate on road to Santiago Peak. 1037 Comment
  RSA712945  Lagophylla ramosissima subsp. ramosissima Fred M. Roberts, Robert L. Allen 2005-10-15 6310 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  CAS-BOT-BC413811  Lagunaria patersonia R. E. Riefner, Jr. 2014-6-25 14 -209 Orange City of Laguna Beach, Shaw's Cove, north of Cliff Dr. and Fairview St. 3 Comment
  UCR154272  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSB47627  Lamarckia aurea Roberts, Fred 1980-4-3 Orange Hills, 1.5 km. ENE Dana Hills High School, Dana Point 85 Comment
  UCSB41749  Lamium amplexicaule Fountain, L. 1966-2-16 Orange Northwest corner of Orangethorpe and State College Blvd Comment
  UCSB49039  Lamium amplexicaule Martincich, M. 1980-3-12 Orange On a cow trail on Franklin Ranch, Goleta 137 Comment
  RSA708014  Lantana camara Scott D. White, Jennifer H. Jones 2005-3-31 10854 Orange South Coast: City of Laguna Beach. 549 Nyes Place. Proposed home site on ca. 0.5 acre. 91 Comment
  UCR186591  Lantana montevidensis Robert DeRuff 1998-3-3 509 Orange Southern Coast, Newport Beach, Newport Back Bay, flats below intersection of Back Bay Dr. and Eastbluff Dr. 1 Comment
  UCSB52935  Lastarriaea coriacea Roberts, Fred 1984-5-1 Orange Wagon Wheel Regional Park; Wagon Wheel Canyon; 3.1km NE Median Rancho Survey Mark; 1.2km NNW BM 422 165 Comment
  IRVC25402  Lasthenia californica Fred M. Roberts 1987-4-3 3335 Orange San Joaquin Hills; Irvine; central Shady Canyon, 2.9km NE Signal Hill. Central coastal 107 Comment
  SEINET7287976  Lasthenia californica C. B. Wolf 1932-3-8 Orange 1/2 Mile north of Corona Del Mar. Bordes of Newport Bay 8 Comment
  RSA695491  Lasthenia coronaria Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  UCR209358  Lasthenia coronaria Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6844 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  UCR102024  Lasthenia glabrata B. G. Pitzer 1997-3-25 3015 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR191779  Lasthenia glabrata A. C. Sanders, Fred M. Roberts 2008-3-25 34571 Orange Peninsular Range; Santa Ana Mtns., saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  LA203785  Lasthenia glabrata subsp. coulteri C. B. Wolf; 1935-3-24 6295 Orange 1 mi N of Buena Park (Valley to W of W.Coyote Hills) 53 Comment
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  UCR70756  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 02691 Orange South Coast, Sunset Beach, [Bolsa Chica] at southern city limits 2 Comment
  UCR247510  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13- 39 Orange city of lake Forest, along El Toro Road at Destry Road 211 Comment
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Apr 7 2021
  UCR106311  Lasthenia gracilis B. G. Pitzer, M. Georgiady 1997-4-5 3095 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR170139  Lasthenia gracilis Jeffrey Ross, R. Zaka 1998-5-2 39 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA292482  Lathyrus sphaericus James Henrickson 1972-10-21 8061 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  RSA12902  Lathyrus vestitus subsp. alefeldii P. C. Everett 1935-2-10 6292 Orange At base of West Ladd Trick Trail, mouth of Baker Canyon, Santa Ana Mountains 335 Comment
  RSA3164  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-3-8 2699 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  IRVC2207  Lathyrus vestitus subsp. laetiflorus B. Mawdsley 1965-5-2 Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  IRVC15053  Lathyrus vestitus subsp. laetiflorus Gordon A. Marsh, K. G. Marsh 1977-5-28 Orange Selva Road. Laguna Niguel Comment
  UC484235  Lathyrus vestitus var. alefeldii C. B. Wolf 1931-3-6 Orange 0.5 mi above Trabuco Oaks (w slope of Santa Ana Mts.); Santa Ana Mts., Trabuco Canyon 457 Comment
  RSA38452  Lavatera assurgentiflora subsp. assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Southeast of Costa Mesa Comment
  UCR217461  Lavatera cretica Mark A. Elvin 2003-2-23 2308 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  CAS-BOT-BC380858  Layia platyglossa P. C. Everett 1935-4-15 2349 Orange Atwood, 0.8 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  RSA697123  Layia platyglossa Minor Warne 1934-4-21 s.n. Orange Santiago Canyon. Comment
  SD218972  Layia platyglossa Bramlet, Jim Harrison 2008-4-3 4151 Orange Santa Ana Mountains region; South Bee Canyon Bowerman landfill site, 1.2 km south of the Bee Canyon access road and 122 m west of the active landfill. Comment
  RSA17019  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA896  Layia platyglossa subsp. campestris J. T. Howell 1928-2-25 844 Orange Between Nolina and Bee Canyon, Rancho Santa Ana. 152 Comment
  UCR138401  Lemna Scott D. White, Brian Leatherman 1997-6-12 5325 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR171395  Lemna minuta R. E. Riefner Jr. 2005-10-27 05 303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College 47 Comment
  CAS-BOT-BC221602  Lepechinia cardiophylla John Thomas Howell 1927-6-26 2606 Orange Claymine Canon [Canyon] n. Santa Ana Mts. 609 Comment
  RSA588894  Lepechinia cardiophylla Fred M. Roberts, Carol A. Roberts 1990-5-30 4660 Orange Ridge between Upper Hagador Canyon and the West Fork of Ladd Canyon, Main Divide Truck Trail, 0.8km WNW Pleasants Peak. 1122 Comment
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Feb 22 2017
  UCR203897  Lepechinia cardiophylla R. E. Riefner Jr. 2008-3-21 08- 59 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, west Fremont Canyon, Windy Ridge south to west fork canyon 463 Comment
  UCR79479  Lepechinia cardiophylla Steve Boyd, K. A. Boyd 1992-7-9 7653 Orange Santa Ana Mtns, along the main crest of the range, north of Pleasants Peak and south of Oak Flat (aka Oat Flat), 3.5 mi. south of junction with Main Divide and Skyline Roads. Comment
  CAS-BOT-BC88683  Lepidium acutidens Carl B. Wolf 1935-3-24 6296 Orange 1 mile north of Buena Par (Valley to west of west Coyote Hils). 53 Comment
  UCD115425  Lepidium draba P. B. Kennedy 1924-2-13 s.n. Orange Wintersberg. Comment
  UCR112097  Lepidium lasiocarpum A. C. Sanders, D. Malueg, K. D. Jones 2000-4-19 23338 Orange Pacific Coast, Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  SD27974  Lepidium nitidum Carl B. Wolf 1932-3-8 2683 Orange 1/2 mile north of Corona Del Mar, Borders of Newport Bay 7 Comment
  UCR191444  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-4-8 34726 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA0127408  Lepidium oblongum Fred M. Roberts 2016-5-20 8060 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  RSA724038  Lepidium strictum R. E. Riefner 2002-7-26 2 -108 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave. and Del Mar Ave. 254 Comment
  RSA754068  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  SD127550  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Bottom of lower Trabuco Canyon, Santa Ana Mts. Comment
  UCD134015  Lepidospartum squamatum J. C. Elmore 1929-10-1 2165 Orange orange. Comment
  UCR193821  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR58731  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Santa Ana Mtns., bottom of lower Trabuco Canyon Comment
  RSA800662  Leptochloa fusca subsp. fascicularis Justin M. Wood 2010-9-29 2740 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  UC1123901  Leptodactylon californicum J. B. Spring 1931-4-14 31 Orange Cold Spring Canyon; Corona Quad., Cold Spring Canyon 548 Comment
  RSA0030890  Leptodactylon californicum subsp. leptotrichomum B. D. Stark 1931-3-12 s.n. Orange West slope of Santa Ana Mts., 3 mi. no. of Modjeska's Home. 304 Comment
  RSA542450  Leptosiphon androsaceus Fred M. Roberts 1988-4-10 3905 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  CAS-BOT-BC227045  Leptosiphon floribundus subsp. glaber E. R. Johnson 1932-5-1 3703 Orange Santa Ana Mts., along ridge, between Skyline Drive and Santiago Peak 1219 Comment
  RSA576  Leptosiphon liniflorus J. T. Howell 1927-6-8 58 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  UCR186586  Lessingia filaginifolia Robert DeRuff 1995-1 s.n. Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff bench 12 Comment
  UCR44906  Lessingia filaginifolia B. G. Pitzer, L. F. LaPre 1986-10-20 0304 B Orange Santa Ana Mtns, Summit of Hicks Canyon on a private road (continuation of Jeffrey Road), c. 2.4 mi. above the gun club 274 Comment
  CAS-BOT-BC283710  Leymus condensatus John Thomas Howell 1927-6-10 2473 Orange Santa Ana Canyon in low place where water stands in winter 152 Comment
  UC817468  Leymus triticoides Carl B. Wolf 1932-6-13 3726 Orange Fullerton; Malvern and Nicholas Aves. 53 Comment
  LA22057  Lilium humboldtii subsp. humboldtii W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Bear Springs Comment
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Jan 29 2015
  CDA34987  Limonium binervosum Daniel Sanchez-Mata 2006-7-1 Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway-Pacific Island Drive. Comment
  RSA0059068  Limonium californicum CNPS Accuracy Assessment Team 2014-7-9 9563 .1 Orange Upper Newport Bay Nature Reserve. Comment
  RSA357146  Limonium californicum var. mexicanum Robert F. Thorne 1975-4-6 45583 Orange Head of Newport Bay. Comment
  UC1789094  Limonium duriusculum R. E. Riefner Jr. 2005-9-9 05 -664 Orange City of Lake Forest, along Aliso Creek near Portola Pkwy, at El Toro Road. 225 Comment
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Jul 5 2010
  RSA723545  Limonium ramosissimum R. E. Riefner 2005-10-5 5 -708 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  RSA731656  Limonium ramosissimum Fred M. Roberts 2007-10-29 6623 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  UCR219807  Limonium ramosissimum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  CAS-BOT-BC226776  Linanthus californicus Helen D. Geis 1902-4-1 s.n. Orange Santa Ana River Canon [Canyon] Comment
  POM212347  Linanthus californicus B. D. Stark 1931-3-12 1938 Orange Santa Ana Mountains, 3 miles north of Modjeska's home 305 Comment
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  POM49703  Linanthus californicus Helen D. Geis 1902-04 s.n. Orange Santa Ana River Canyon Comment
  RSA468459  Linanthus californicus N. C. Cooper 1949-5-1 3940 Orange San Juan Canyon. 610 Comment
  CLARK-A1528-3471  Linanthus dianthiflorus John C. Roos 1937-2-23 1306 Orange Laguna Beach Comment
  RSA697071  Linanthus dianthiflorus Keith E. Hoffmaster 1927-4-2 801 Orange Santa Ana Mnts. Comment
  RSA698395  Linanthus dianthiflorus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA773510  Linanthus dianthiflorus Fred M. Roberts 1999-4-26 5198 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  UC511103  Linanthus dianthiflorus Lyman Benson 1932-3-26 3192 Orange Dana Point 60 Comment
  SEINET12279064  Linanthus dianthiflorus J. F. Bright, Wyman, C. 1933-1 8009 Orange Santa Anna foothills Comment
  UC1419618  Linaria maroccana J. McNeill 1969-4-10 3034 Orange Newport, Eastbluffs, Irvine Arboretum Irvine Arboretum; Upper Newport Bay, Newport, Eastbluffs, Irvine Arboretum 15 Comment
  POM8811  Lithophragma affine subsp. mixtum P. A. Munz, R. D. Harwood 1920-4-24 3782 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA162696  Lithophragma affine subsp. mixtum J. D. Olmsted 1959-4-23 461 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  IRVC1115  Lobularia maritima D. W. Bryant 1965-4-4 Orange Santa Ana and 22nd. Newport Beach Comment
  IRVC1116  Lobularia maritima C. Duncan 1965-4-4 Orange Newport Beach Comment
  RSA662131  Lobularia maritima Daniel Curran 1981-1-23 5 Orange 2733 Boadway, Anaheim. Comment
  UCR267216  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7146 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  SD247597  Logfia gallica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49657 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  UCD66217  Lolium multiflorum A. A. Beetle 1942-4-19 3104 Orange Rt. 101. San Clemente. Comment
  CAS-BOT-BC269106  Lolium perenne Ira L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Boulevards, Fullerton Comment
  UCR193070  Lolium perenne subsp. multiflorum A. C. Sanders, Mitch Provance 2008-5-20 35419 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 355 Comment
  RSA699306  Lolium perenne subsp. multiflorum Keith E. Hoffmaster 1927-5-26 107 Orange Santa Ana Comment
  CAS-BOT-BC271070  Lolium temulentum E. R. Johnson 1932-5-18 3638 Orange East edge of grain field bordering Rancho, Rancho Santa Ana Botanic Garden 198 Comment
  CLARK-A1528-4720  Lolium temulentum John C. Roos 1937-5-21 2068 Orange Santa Ana Comment
  RSA734616  Lolium temulentum Keith E. Hoffmaster 1927-4-26 39 Orange Santa Ana. Comment
  UC537108  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay Comment
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  UC1125290  Lonicera subspicata var. denudata A. Lewis Apr 1934 404 Orange Verdugo Canyon Cleveland National Forest, Corona Quadrangle Comment
  RSA788249  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49625 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  POM50652  Lotus heermannii L. R. Abrams 1901-06 1812 Orange Santiago Peak Trail 915 Comment
  RSA603367  Lotus heermannii Scott D. White, Brian Leatherman 1997-6-12 5338 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA0011213  Lotus heermannii Eileen McCollum 1932-4-23 s.n. Orange Hill near Robbers Peak. Comment
  RSA734858  Lotus salsuginosus A. C. Sanders, Mitch Provance 2008-5-20 35406 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UCR191348  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34631 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA0036646  Lotus salsuginosus var. salsuginosus Robt. Allen, Richard Newell 2009-7-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Upper Santiago Canyon, just past community of Modjeska Canyon, Fleming Ranch, East end of Modjeska Canyon Road. 621 Comment
  RSA498846  Lotus scoparius E. S. Spalding 1923-12-1 20335 Orange San Juan Capistrano, sea shore. Comment
  SEINET10484472  Lotus scoparius Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7127 Orange In vicinity of laguna beach. Corolla yellow fading to orange. 152 Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. Comment
  UCR154288  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR193062  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-5-6 35219 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  UC864904  Lotus strigosus Carl B. Wolf 1932-3-8 Orange 0.5 mi n Corona del Mar (borders of Newport Bay); Newport Bay 7 Comment
  UCR102008  Lotus strigosus B. G. Pitzer 1997-3-25 3030 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR191323  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-4-8 34747 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR193849  Lotus strigosus A. C. Sanders, Fred M. Roberts 2008-7-16 35879 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR281557  Lotus strigosus Mitch Provance, Jeremiah George 2017-3-20 317- 114 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  SEINET6932555  Lotus strigosus Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA38193  Ludwigia peploides subsp. peploides P. A. Munz 1946-10-2 11557 Orange Bank of Santa Ana River, Rancho Santa Ana. 122 Comment
  CAS-BOT-BC196229  Lupinus albifrons var. eminens Marcus E. Jones 1926-4-28 s.n. Orange Gaviota Canon [Canyon] Comment
  UCR193295  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA699188  Lupinus bicolor J. R. Bruff 1927-3-16 2 -L Orange 1 mi. N.E. of Country Club. Comment
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Sep 20 2011
  RSA794050  Lupinus bicolor subsp. microphyllus Doris Bowers 1971-4-19 1686 Orange Black Star Canyon Indian Site 762 Comment
  IRVC22067  Lupinus bicolor subsp. microphyllus Fred M. Roberts 1983-3-16 917 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC2288  Lupinus bicolor subsp. umbellatus H. Ellis 1965-3-18 HS 0428 Orange Corona Del Mar Beach Southern Coastal Comment
  RSA542581  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1988-4-10 3904 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  SBBG103895  Lupinus excubitus B. Pitzer, S. Hemstreet 1992-5-27 1964 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  CAS-BOT-BC216676  Lupinus excubitus subsp. hallii Ramon Valverde 1939-5-1 3514 Orange Administrative building, grounds, Rancho Santa Ana Botanic Garden Comment
  IRVC2316  Lupinus excubitus var. hallii A. S. Boughey, Pat Pembrook 1965-6-15 1038 Orange Silverado Canyon near Silverado. Santa Ana Mountains Comment
  UC527220  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Santa Ana Canyon mouth of Gypsum Canyon; n base of Santa Ana Mts., Santa Ana Canyon 152 Comment
  IRVC2326  Lupinus hirsutissimus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  RSA2086  Lupinus hirsutissimus Carl B. Wolf 1931-3-6 1843 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA598965  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains: above Modjeska Canyon, proposed water tank site. 427 Comment
  IRVC20367  Lupinus hirsutissimus Fred M. Roberts 1983-3-16 931 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC2325  Lupinus hirsutissimus Mike McCartin 1965-4-3 s.n. Orange Newport Beach, [Newport] Back Bay Southern Coastal Comment
  UCR240077  Lupinus latifolius Dick Newell, Don Millar 2012-5-22 255 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hangmans Tree Rd. at Santiago Creek 350 Comment
  IRVC15375  Lupinus latifolius Charles W. Sexton 1974-5-28 s.n. Orange Trabuco Canyon below Yeager's Mesa. Santa Ana Mountains Comment
  LA205128  Lupinus latifolius W. E. Pequegnat; August 1937 34 Orange Santa Ana Mountains, Santiago Peak, Bear Springs Comment
  RSA722339  Lupinus sparsiflorus R. H. McArthur 1934-3-25 s.n. Orange Field W. of Irvine Park. Comment
  IRVC2335  Lupinus sparsiflorus subsp. sparsiflorus D. Frees 1965-3-13 s.n. Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA542384  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3850 Orange Rancho Mission Viejo: Verdugo Canyon, 2.6 km ENE Point Rancho Survey Mark 149 Comment
  RSA683169  Lupinus sparsiflorus subsp. sparsiflorus Scott D. White, Amanda Duchardt 2003-4-10 9020 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  IRVC14753  Lupinus sparsiflorus subsp. sparsiflorus A. S. Boughey 1968-4-16 227 Orange Lower Modjeska Canyon, Fleming property. Sana Ana Mountains Comment
  IRVC2350  Lupinus succulentus Ed Hazen 1965-4-1 HS 0417 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA685924  Lupinus succulentus Fred M. Roberts, D. E. Bramlet 2003-3-27 5623 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Chistianitos Cyn., 0.79km N Sycamore Gate, 0.23km W Chistianitos Rd. 122 Comment
  UC1287106  Lupinus succulentus C. L. Hitchcock 1966-3-15 24133 Orange 1/2 mi e Brea; e of Brea Comment
  UCR100308  Lupinus succulentus B. G. Pitzer 1997-4-15 3146 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA414397  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach, Orange County Comment
  SD143894  Lupinus truncatus Scott D. White 1997-3-28 4851 Orange Santas Ana Mountains; above Modjeska Canyon. 424 Comment
  UCR52603  Lupinus truncatus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  CAS-BOT-BC383072  Lycium brevipes var. hassei R. E. Riefner, Jr. 2014-4-12 14 -77 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  SD248502  Lycium brevipes var. hassei R. E. Jr. Riefner 2006-3-19 06 58 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. Along trail. 39 Comment
  CAS-BOT-BC516184  Lycium californicum R. E. Riefner, Jr. 2012-11-24 12 -558 Orange City of San Clemente, Presidio Ave., ca. 0.2 mi S of Ave. Pico 34 Comment
  OBI9188  Lycium californicum Dieter H. Wilken, Timothy LeBlanc 1966-1-7 621 Orange Dana Point, N of San Juan Capistrano 3 Comment
  SD237629  Lycium californicum T. B. Salvato 2010-9-27 5101 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cove Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 52 Comment
  UCR188948  Macadamia integrifolia Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, Back Bay Drive, lower bluff between 23rd Street and Mariners Drive 5 Comment
  RSA708724  Madia gracilis Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Nancy Hatfield 2005-5-30 6224 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CAS-BOT-BC206253  Malacothamnus fasciculatus C. B. Wolf 1931-7-25 1166 Orange North side of Pear Orchard, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  CAS-BOT-BC206255  Malacothamnus fasciculatus Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  POM220268  Malacothamnus fasciculatus F. M. Reed 1929-06 6534 Orange Between Newport and Huntington Beach Comment
  UCR103710  Malacothamnus fasciculatus B. G. Pitzer, T. Tennant 1997-11-8 3364 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  SBBG87367  Malacothamnus fasciculatus var. fasciculatus K. Kimberley 1988-5-29 17 Orange Hwy 18, 2 mi SW of Irvine Lake 152 Comment
  OBI12363  Malacothamnus fasciculatus var. laxiflorus Robert F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  CDA8326  Malacothrix saxatilis var. tenuifolia T. C. Fuller 1962-6-7 8875 Orange Brea Canyon Road to Pomona, 1.2 miles north of Brea. 0 Comment
  RSA507486  Malacothrix saxatilis var. tenuifolia Jeri Hirshberg 1988-6-7 s.n Orange Santa Ana Mts. 274 Comment
  CDA1091  Malephora crocea D. G. Kelch 2006-12-9 6 .543 Orange Along Newport Back Bay Dr. in side canyon. Comment
  IRVC3285  Malosma laurina Fred M. Roberts, K. G. Marsh 1985-7-18 2057 Orange Temple Hill, Goff Ridge, 0.9km NE Goff Island off Nye Place Laguna Beach 168 Comment
  RSA386412  Malosma laurina F. R. Fosberg 1931-6-21 S- 5098 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA542520  Malosma laurina Fred M. Roberts, R. Fisher 1986-6-18 3018 Orange Irvine: Lower Shady Canyon, east slope, ca 2.6 km SE French Hill. 91 Comment
  RSA42673  Malosma laurina H. P. Bracelin 1942-11-22 2369 Orange Southern & Lower California Comment
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Jun 13 2012
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  OBI30254  Malva parviflora Sally Hawn 1971-4-6 80 Orange In waste field E of 11031 Meads, Orange 152 Comment
  RSA425040  Malva parviflora Jack Easton 1987-4-21 s.n. Orange Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach. 30 Comment
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Feb 6 2009
  RSA649333  Malva parviflora C. J. Parenti 1971-3-7 D 15 Orange Collected in empty lot between West and Walnut Streets. About 1000 ft. from the Disneyland Hotel. 30 Comment
  RSA650629  Malva parviflora Daniel Truong 1991-5-13 20 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCSB41834  Malva parviflora MacKay, Shelley 1971-4-1 Orange On the CSF campus, along the side of the concrete 41 Comment
  POM2951  Malvella leprosa D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  POM2953  Malvella leprosa P. A. Munz 1918-5-4 2205 Orange Laguna Lakes, Laguna. Comment
  RSA77178  Malvella leprosa F. W. Peirson 1924-5-31 4646 Orange Laguna Canyon, near Laguna Beach. 107 Comment
  RSA77180  Malvella leprosa F. W. Peirson 1924-8-29 5068 Orange 4 miles S of Santa Ana Comment
  POM48010  Malvella leprosa I. M. Johnston 1924-8-29 s.n. Orange 4 mi S of Santa Ana Comment
  CDA25897  Mangifera indica Mark A. Elvin, D. G. Kelch 2006-12-9 5322 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  HSC14229  Marrubium vulgare C. L. Hitchcock, C. V. Muhlick 1964-3-17 23073 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA0043354  Marrubium vulgare David Barrios 1991-5-8 21 Orange 1500 ft. northwest of Fairmont Ave and Quail Cir., Yorba Linda. 365 Comment
  RSA701971  Marrubium vulgare Fred M. Roberts, David E. Bramlet 2003-6-20 5927 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  UC537163  Marrubium vulgare Lawrence M. Booth 1932-5-24 1107 Orange Newport Bay Comment
  UCSB48088  Marrubium vulgare Roberts, Fred 1981-5-2 Orange Camino Capistrano, 1.7km N Crown Valley Parkway 49 Comment
  SD240774  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07 415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palm Ave at Via Lomas De Yorba East. 110 Comment
  CAS-BOT-BC60301  Matthiola incana E. K. Balls 1955-4-4 20423 Orange West end of Newport Beach. 3 Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  RSA797820  Meconella denticulata Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49809 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA771517  Meconella oregana var. denticulata Keith E. Hoffmaster 1934-4-22 181 Orange Santa Ana Mountains Comment
  CDA27610  Medicago arborea Robert L. Pope 1969-5-22 Orange No other information. 0 Comment
  IRVC25033  Medicago lupulina Fred M. Roberts 1986-8-26 3085 Orange University of California campus, Alderich Park just north of Engineering Building; Irvine 26 Comment
  IRVC2373  Medicago polymorpha Anonymous 1965-3-14 Orange Dana Point. Southern Coastal Comment
  RSA737236  Medicago polymorpha R. E. Riefner 2008-9-5 08 -278 Orange City of Lake Forest, 0.2 miles W of Portola Pwy along Aliso Creek. 222 Comment
  UCD170851  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-5-6 35258 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro. 470 Comment
  RSA746480  Medicago truncatula R. E. Riefner Jr. 2007-4-1 07 -168 Orange City of Laguna Niguel, Laguna Niguel Regional Park, general vicinity of La Paz Rd. at Aliso Creek. 63 Comment
  IRVC26847  Melica frutescens S. D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site. Santa Ana Mountains 427 Comment
  CAS-BOT-BC94724  Melica imperfecta R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 718 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  RSA403489  Melica imperfecta Thekla Mohr 1917-04 3219 Orange Laguna Comment
  RSA403491  Melica imperfecta A. M. Johnson 1934-4-15 4416 Orange Carmen's Laguna Comment
  RSA403492  Melica imperfecta Thekla Mohr 3219 Orange Laguna. Comment
  SBBG119063  Melica imperfecta D. E. Bramlet, F. Roberts 2003-3-13 3334 Orange Donna O'Neill Reserve, NE ridge of reserve, ca. 915 m W of Cristianitos Rd and 1.2 km N of the E-W access rd (San Clemente: T8S R7W S12, NE of the NE 195 Comment
  UC1146059  Melica imperfecta C. L. Hitchcock and C. V. Muhlick 1964-3-17 23071 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  POM7085  Melica imperfecta var. flexuosa P. A. Munz, L. T. Street, G. Williams 1919-5-3 2659 Orange Santa Ana River Canyon. Comment
  IRVC2396  Melilotus albus Pat Rolfe 1965-4-24 s.n. Orange Ortega Highway. Santa Ana Mountains Comment
  RSA730996  Melilotus albus Fred M. Roberts 2006-11-15 6470 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  UCR237821  Melilotus albus Mark A. Elvin 2003-2-2 2291 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC2419  Melilotus indicus B. Mawdsley 1965-5-1 s.n. Orange Newport Beach; Corona del Mar, 520 Narcissus Dr. Southern Coastal Comment
  OBI7999  Melilotus indicus Kurt R. Neisess 1975-12-19 s.n. Orange Yorba Linda Comment
  RSA734339  Melilotus indicus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34636 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA743458  Melilotus indicus Fred M. Roberts 2008-3-19 6786 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  UCR103153  Melilotus indicus Scott D. White 1997-3-26 4808 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  UCR175055  Melilotus indicus Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  CLARK-A1528-981  Melilotus indicus Patricia A. Andrews 1975-6-26 5919 Orange Capistrano Bay Beach 9 Comment
  POM201874  Melilotus indicus L. M. Booth 1932-5-12 1018 Orange Newport Bay. Comment
  RSA0054855  Melilotus indicus Grace Adams 1938-5-29 s.n. Orange Santiago Creek. Comment
  RSA733698  Melilotus indicus Keith E. Hoffmaster 1934-1 286 Orange Santa Ana Comment
  RSA16494  Mentzelia dispersa Percy C. Everett 1935-6-18 7213 Orange Santa Ana Mts: Summit of Santiago Peak. 1732 Comment
  RSA539392  Mentzelia dispersa Fred M. Roberts, Carol A. Roberts 1988-6-9 4071 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA539391  Mentzelia micrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4072 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA594800  Mentzelia micrantha Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4921 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  UCR224406  Mentzelia micrantha Robt. L. Allen, Genevieve Walden 2008-6-26 s.n. Orange Santa Ana Mountains, along access road to Modjeska Peak, outside the sharp bend in the extreme north end of the road. Survey Point #47 1514 Comment
  RSA696448  Mesembryanthemum crystallinum Minor Warne 1934-5-6 s.n. Orange Bluffs Corona Del Mar Comment
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Jun 24 2009
  RSA799937  Mesembryanthemum nodiflorum Justin M. Wood 2011-4-12 3669 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  SEINET3155128  Mesembryanthemum nodiflorum L. Abrams 1903-4-20 3280 Orange Near San Juan Comment
  RSA588774  Micropus californicus Fred M. Roberts, Carol A. Roberts, D. Bontrager 1990-4-28 4589 Orange Rancho Mission Viejo: Christianitos Canyon, 4.0 kilometers E Playa Survey Marker. 174 Comment
  RSA683077  Micropus californicus Scott D. White, Amanda Duchardt 2003-5-1 9158 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  UCSB48060  Microseris douglasii Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  CAS-BOT-BC322629  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange Site of proposed Research Park, southwest of main campus circle, ca. halfway between Berkeley Ave. and new freeway (Bonita Canyon), USGS Tustin 7 1/2 ' quad, University of California Irvine Campus, Irvine 36 Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  UCR107842  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange University of California, Irvine campus. Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and new freeway (Bonita Canyon). 37 Comment
  UCR158095  Microseris douglasii subsp. platycarpha Adrian Wolf 1998-5-4 203 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.75 km SW of Woods Canyon, 2.25 km NNW of Aliso Water Treatment Plant, north of access road 30 Comment
  UCR158228  Microseris douglasii subsp. platycarpha Adrian Wolf, David Charlton 1998-4-22 129 Orange South Coast, San Joaquin Hills, Shady Canyon east of Sand Canyon Reservoir, 1 mile [ESE] of French Hill, south of gravel road toward Sand Cyn. Rd 79 Comment
  RSA599650  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4931 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  RSA649068  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2973 Orange Fremont Canyon. The site is 335 m south of the existing access road on the north ridge of the canyon. The site is 1.21km northeast of Santiago Creek. 335 Comment
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Feb 21 2007
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  RSA789582  Microseris heterocarpa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR191245  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR281570  Mimulus aurantiacus Mitch Provance 2017-6-9 617- 86 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  SEINET10863345  Mimulus aurantiacus subsp. australis Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7136 Orange In vicinity of laguna beach. Corolla orange. 152 Comment
  LA209116  Mimulus aurantiacus var. pubescens W. E. Pequegnat; 1937-5-17 23 Orange Santa Ana Mountains, Santiago Peak 1523 Comment
  POM311164  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -F&G Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA551147  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-16 1066 -b Orange 2.4 mi. N and W of Hwy 74 along USFS Rd. 3S04 (N side of paves loop allowing access to Main Divide Rd.) 945 Comment
  RSA647949  Mimulus aurantiacus var. pubescens Ken Greby 1985-5-17 35 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA0056605  Mimulus aurantiacus var. pubescens Fred M. Roberts, K. G. Marsh 1987-5-14 3452 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2.8 km NW Los Pinos Peak. 721 Comment
  RSA749308  Mimulus brevipes Fred M. Roberts, Linda Farley 2008-3-28 7130 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber's Peak, Irvine Land Conservancy. 437 Comment
  UCR192730  Mimulus brevipes A. C. Sanders, Fred M. Roberts 2008-5-6 35230 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  SEINET7908927  Mimulus cardinalis G. A. Klue 1972-1 Orange Silverado Canyon 610 Comment
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  RSA7634  Mimulus clevelandii Carl B. Wolf 1933-11 20009 Orange Trabuco Canyon, so wall, opposite the Trabuco truck trail. Comment
  UCSC000866  Mimulus clevelandii Peter Kamb 1948-6-19 1102 Orange Holy Jim Canyon, Santa Ana Mts. 610 Comment
  RSA701812  Mimulus floribundus Fred M. Roberts, David Bramlet 2003-6-6 5902 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. Comment
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Nov 9 2014
  UCR193504  Mimulus floribundus A. C. Sanders, T. B. Salvato 2008-5-13 35335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC434670  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange Hills back of Laguna Beach 152 Comment
  RSA0126621  Mirabilis laevis var. crassifolia Fred M. Roberts 2012-4-24 7501 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  JEPS61343  Mirabilis laevis var. crassifolia Alice King 1908-4-18 Orange near Santa Ana; ; Near Santa Ana Comment
  CSUSB1384  Modiola caroliniana John N. Bullock 1970-4-3 Orange Found as weed in residential district, Boxwood Street, Anaheim (city). 45 Comment
  RSA0010775  Mollugo verticillata P. A. Munz 1922-9-2 6357 Orange Ponds in Laguna Canyon. 46 Comment
  UCD86109  Monanthochloe littoralis F. M. Reed 1928-2-10 5713 Orange Arch Beach. 46 Comment
  RSA0059066  Monanthochloe littoralis CNPS Accuracy Assessment Team 2014-7-8 9567 .1 Orange Upper Newport Bay Nature Reserve. Comment
  CAS-BOT-BC249024  Monardella hypoleuca subsp. intermedia A. C. Sanders; Mark A. Elvin 2005-9-2 31613 Orange Santa Ana Mtns.: near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  CAS-BOT-BC249028  Monardella hypoleuca subsp. intermedia A. C. Sanders; Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA0013358  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35683 Orange Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 365 Comment
  UCR158808  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31607 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 820 Comment
  RSA539413  Monardella lanceolata var. lanceolata Fred M. Roberts 1988-6-10 4102 Orange Santa Ana Mountains: Modjeska Peak, 0.4 km WSW summit. 1621 Comment
  RSA401628A  Monardella macrantha subsp. hallii Albert J. Perkins 1914-5-30 s.n. Orange Summit of Santiago Peak Comment
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Jan 12 2011
  POM156675  Monolepis nuttalliana L. R. Abrams 1903-4-18 3267 Orange Capistrano Comment
  SEINET3828400  Muhlenbergia microsperma R. E. Riefner Jr. 2011-1 11 -99 Orange Newport beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  UC971743  Muhlenbergia microsperma L. M. Booth 1932-6-29 1226 Orange Newport Bay Comment
  UCD86820  Muhlenbergia microsperma A. A. Beetle 1942-4-19 3100 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCR168465  Muhlenbergia microsperma D. E. Bramlet, Fred M. Roberts 2003-5-1 3431 a Orange Donna O'Neill Reserve, west of Cristianitos Road 121 Comment
  RSA0010807  Myoporum laetum James Henrickson 1970-9-5 5347 Orange 2 mi NW of Huntington Beach in southern open portion of Bolsa Chica Salt Marsh 0 Comment
  UCR239624  Myoporum rapense Fred M. Roberts 2012-4-24 7496 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 Comment
  RSA696203  Myosotis arvensis Virginia Pritchard, Ruth Greenwald 1938-05 s.n. Orange Santa Ana. Comment
  POM12404  Najas guadalupensis Philip A. Munz 1922-9-2 6347 Orange Ponds in Laguna Canyon 46 Comment
  POM6291  Nama stenocarpa P. A. Munz, L. T. Street, G. Williams 1919-5-4 2681 Orange Laguna Canyon. Comment
  UCR158039  Nama stenocarpa Adrian Wolf 1998-7-21 402 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 3 km up canyon from Pacific Coast Hwy, 2.75 km SW of Laguna Canyon Rd. and El Toro intersection 122 Comment
  CAS-BOT-BC259822  Nassella cernua LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canon [Trabuco Canyon], Capistrano Comment
  RSA184087  Nassella lepida I. L. Wiggins 1966-3-2 20487 Orange Roadside, carbon Canyon 1.5 miles above the dam, Orange County Comment
  RSA749291  Nassella lepida Fred M. Roberts 1999-4-2 5169 Orange Lomas de Santiago: Loma Ridge, Dripping Springs Spur Rd., 2.3 km W Silverado Sch. and 5.1 km NW Bolero Lookout. 450 Comment
  UC971747  Nassella lepida L. M. Booth 1932-5-12 1036 Orange Newport Bay Comment
  RSA602779  Nassella pulchra R. E. Riefner Jr., Tony Bomkamp, R. Ramirez 1997-6-11 97 -181 Orange Black Star Canyon, Hidden Ranch. 610 Comment
  RSA743513  Nassella pulchra Fred M. Roberts 2008-4-9 6863 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA443822  Nasturtium officinale Gordon Marsh 1975-7-28 s.n. Orange Huntington Beach: East Garden Grove-Wintersburg Flood Control Channel, just N of Warner St. bridge crossing, (No. C05) Comment
  RSA689535  Nasturtium officinale R. E. Riefner 2002-5-4 20 -97 Orange Upper Newport Bay, Jamboree Rd at Bayview Dr. 15 Comment
  RSA799626  Navarretia prostrata Justin M. Wood 2011-4-12 3657 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA731542  Navarretia prostrata R. E. Riefner 1998-5-5 98 -326 Orange San Clemente State Beach, mima mound field in SW corner of park. 27 Comment
  UCR207191  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA665941  Nemacaulis denudata var. denudata Fred M. Roberts 1997-4-29 5023 Orange Bolsa Chica Salt Marsh; (US Fish and Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 2 Comment
  RSA721840  Nemophila aurita Unspecified s.n. Orange Orange County park. Comment
  RSA3166  Nemophila menziesii Carl B. Wolf 1932-3-8 2697 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  RSA421357  Nemophila menziesii M. B. Dunkle 1935-2-10 4329 Orange El Toro. Comment
  RSA700000  Nicotiana bigelovii L. C. Hull 1934-4-1 s.n. Orange Panorama Heights Comment
  UCD126655  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  RSA0028716  Nicotiana glauca Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 22 Orange 1.2 mile south of Chino Hills State Park. 168 Comment
  RSA184099  Nicotiana glauca I. L. Wiggins 1965-11-6 20348 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  UCR191318  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA5813  Nitrophila occidentalis C. B. Wolf 1932-6-28 3805 Orange Bryant Ranch: Edge of field on Bixby Ave., 300 ft. east of SW corner of NW1/4 of NE 1/4 of Sec. 33. 9 Comment
  IRVC26534  Nolina Mark A. Elvin 2004-5-22 3452 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
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Jan 2 2008
  RSA759249  Nolina cismontana Robt. Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, circa 3.4 air miles (5458m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. 736 Comment
  UCR207516  Nolina cismontana O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  RSA0051415  Nolina parryi R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA17145  Oenothera californica subsp. californica Carl B. Wolf 1936-6-12 7944 Orange 1 mile E of Atwood. 91 Comment
  RSA752093  Oenothera contorta Norland 1929-4-2 45 Orange Cypress Comment
  RSA733636  Oenothera dentata R. H. McArthur 1934-3-10 s.n. Orange Tomatoe Springs Comment
  UC454579  Oenothera elata subsp. hirsutissima I. J. Condit 1908-7-20 Orange Los Alamitos Comment
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Nov 20 2010
  POM225243  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14176 Orange About 6 miles south of Garden Grove. Comment
  RSA771511  Oenothera micrantha Keith E. Hoffmaster 1927-4-2 465 Orange Santa Ana Mountains [county not specified] Comment
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Jun 10 2012
  RSA785413  Oenothera spiralis Keith E. Hoffmaster 1927-4-5 464 Orange [City of] Newport. Comment
  POM78162  Oligomeris linifolia F. M. Reed 1924-7-8 4899 Orange Bluff north of San Juan Point [Dana Point] Comment
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May 1 2011
  RSA399174  Oligomeris linifolia Unspecified 1915-01 s.n. Orange Redondo. Comment
  OBI7084  Opuntia Walkington, Pinkava, G. Smith & McLeod, McLeod 1971-5-9 MGM 295 (=DLW470) Orange Orange, CA. down from saddle at E end of hill Comment
  SEINET10732293  Opuntia X occidentalis Betty Venrick 1961-5-13 Venrick 586 Orange 3 miles North of Laguna Beach, on coast. Comment
  RSA743468  Opuntia X vaseyi Fred M. Roberts 2008-10-27 7127 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  SD212539  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06 312 Orange City of Newport Beach, Upper Newport Bay, North shore of Newport Bay, West circa 0.25 miles from intersection of Bayview Way and Bayview Place 10 Comment
  RSA704425  Opuntia littoralis Fred M. Roberts, David E. Bramlet 2004-7-30 6081 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  OBI7086  Opuntia oricola Walkington, Pinkava, G. Smith & McLeod, McLeod 1970-11-7 M 290 ; (DLW Orange Fullerton, W side of Euclid Ave., 1/2 mi N of Bastanchury Comment
  IRVC14191  Opuntia prolifera J. W. Johnson 1976-8-11 Orange Irvine; UCI, 300ft. south of Medical Center; on heavy clay soil in grazing climax of mediterranean grasses. Destroyed by construction. Southern Coastal Comment
  POM317768  Opuntia vaseyi David Walkington 1963-5-17 169 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA15943  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6692 Orange Bryant Ranch. NW corner Hansen Rd. and Bryant Ave. 30 Comment
  IRVC29090  Orthocarpus purpurascens var. purpurascens Fred M. Roberts 1989-3-17 4205 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  UC421704  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange Santa Ana Canyon 182 Comment
  RSA221029  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  UCR26878  Osmorhiza brachypoda E. W. Lathrop 1966-3-23 6108 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  UC484249  Oxalis albicans subsp. californica C. B. Wolf 1931-3-6 1858 Orange 1.5 mi below Trabaco Camp (Trabaco Canyon); Santa Ana Mtns, W slope 548 Comment
  UCR193383  Oxalis californica A. C. Sanders, Mitch Provance 2008-5-20 35391 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA0023268  Oxalis californica Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49785 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SEINET946136  Oxalis californica Robert Barr 1967-1 67190 Orange Along Santiago Canyon Road near Silveraldo Road; Santa Ana Montains. 259 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 Comment
  RSA12828  Oxalis pes-caprae Carl B. Wolf 1934-12-26 6261 Orange 1/8 mile south of San Juan Capistrano 30 Comment
  RSA303  Paeonia californica J. T. Howell 1927-6-6 50 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR142521  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange Peninsular Ranges: Santa Ana Mts. region, 30m south of the SCE maintenace road and 1 km east of Weir Canyon, 1.5km west of Blind Canyon 287 Comment
  OBI82297  Pallenis maritima R. E. Riefner 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 2 Comment
  SD247340  Pallenis maritima R. E. Jr. Riefner 2012-11-14 12 551 Orange City of Newport Beach, south of Poppy Street/Ocean Boulevard, coastal bluff near Little Corona Beach, rocky intertidal area. 4 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 Comment
  SEINET6655641  Panicum virgatum R. E. Riefner Jr. 2006-10-8 06 -482 Orange City of Irvine, San Diego Creek near 405-Freeway.; 0 49 Comment
  RSA717519  Parietaria judaica R. E. Riefner 2006-7-28 6 -325 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 4 Comment
  UCR230235  Parkinsonia aculeata Dick Newell, Don Millar 2011-3-22 090 Orange Peninsular Range; Santa Ana Mtns., Santiago Canyon Road, 1.2 miles east of 261 Toll Road 286 Comment
  RSA648017  Paspalum dilatatum J. C. Roos 1936-10-13 1533 Orange Costa Mesa near Santa Ana. Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA91901  Paspalum distichum F. W. Peirson 1924-5-31 4648 Orange Laguna Canyon, near Laguna Beach 106 Comment
  RSA766062  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of Dana Point, near Ritz-Carlton Hotel, Salt Creek Beach area. 1 Comment
  UCR266421  Paspalum vaginatum D. E. Bramlet 2009-11-27 4429 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  RSA680561  Pectocarya linearis Scott D. White 2003-3-21 8815 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR192629  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0054893  Pectocarya linearis Keith E. Hoffmaster 1932-2-28 62 Orange Santa Ana Mts. Comment
  RSA590954  Pectocarya linearis subsp. ferocula Fred M. Roberts, Cathy Novak, D. Bontrager 1991-4-18 4771 Orange Santa Ana Mtns, 0.7km N jct Santiago Canyon Road and Live Oak Canyon Road, 7.7km WSW Modjeska Peak. 411 Comment
  UC1543029  Pectocarya linearis subsp. ferocula Donald G. Nelson 1935-3-16 167 Orange n Fullerton (across valley from Hillcrest Park) Comment
  UCR217452  Pectocarya linearis subsp. ferocula Mark A. Elvin 2003-1-26 2230 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA548878  Pedicularis densiflora Bernard Jaroslow 1990-4-25 B- 36 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  CDA32097  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal; UCI Arboretum Comment
  SD174884  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal: UCI Arboretum, growing wild in the Arboretum grounds, not cultivated. 14 Comment
  UCR196964  Pelargonium Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  RSA752318  Pellaea andromedifolia Fred M. Roberts 2008-5-20 7131 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Cyn., 0.8 km NW Bolero Spr. and 3.1 km WNW Bolero Lookout. Irvine Ranch Conservancy. 467 Comment
  RSA184141  Pellaea andromedifolia var. andromedifolia I. L. Wiggins 1966-2-4 20420 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  CAS-BOT-BC71395  Pellaea mucronata Miss. Mason 1892-1-1 s.n. Orange Orange Comment
  UCR113460  Pellaea mucronata subsp. mucronata R. E. Riefner Jr. 2000-8-8 20- 719 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, E slope of upper Fremont Canyon, south of Donaldson Ranch and south of powerline/ National Forest boundary 454 Comment
  RSA7472  Pellaea mucronata var. mucronata C. B. Wolf 1933-8-24 5396 Orange Summit of Santiago Peak, Santa Ana Mountains 1731 Comment
  LA102210  Pennisetum ciliare J. West; 1983-10-8 sn Orange freeway right of way along Newport Freeway (#55) at its intersection with Chapman Ave Comment
  RSA0093405  Pennisetum clandestinum D. E. Bramlet 2009-11-20 4416 Orange South Coast: San Diego Creek between Irvine and Newport Back Bay. 4 Comment
  RSA18551  Pennisetum clandestinum Wesley Conklin 1937-1-20 8309 Orange Growing in Conklin's yard at Placentia Comment
  CDA2294  Pennisetum setaceum D. G. Kelch 2006-12-9 6 .564 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA2296  Pennisetum setaceum T. C. Fuller 1961-10-17 7156 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
  CDA20319  Pennisetum villosum R. Tiffer 2004-11-9 PDR 1367133 Orange Anaheim. 1750 S. Douglass Road. Lawn weed. 0 Comment
  CHSC1848  Penstemon antirrhinoides S. Westerberg 1938-4-7 Orange San Juan canyon. Comment
  RSA0054891  Penstemon cordifolius Keith E. Hoffmaster 1941-7-14 1251 Orange At Blanding Nursery, Santa Ana. Comment
  POM18089  Penstemon heterophyllus var. australis Philip A. Munz 1923-9-7 7748 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  RSA16714  Penstemon spectabilis B. D. Stark 1935-7-26 7533 Orange 2 mi. south of summit of Skyline Drive, on road along ridge to Santiago Peak. 1067 Comment
  RSA298693  Penstemon spectabilis D. C. Michener 1982-5-24 4045 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  RSA761798  Penstemon spectabilis var. spectabilis Robert Allen 2003-6-22 12298 Orange Along North Main Divide Road, 7.5 road miles north of Falcon Group Campground, circa 1.35 air miles west of Trabuco Peak. 1205 Comment
  RSA0060232  Pentagramma triangularis Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA739330  Pentagramma triangularis subsp. triangularis Keith E. Hoffmaster 1927-4-8 26 Orange Santa Ana Mountains. Comment
  UCSB41755  Peritoma arborea Gittins, Barbara 1963-7-20 Orange Newport Beach; east side of Palisades Road below narrows and boat ramps Comment
  UCSB44694  Peritoma arborea Hibbard, Doug 1977-3-4 Orange Off immediate south side of Back Bay Rd., 0.7 miles from crossing Jamboree Blvd. Comment
  CAS-BOT-BC418842  Persicaria hydropiperoides Le Roy Abrams 1901-6-11 1754 Orange New River near Long Beach Comment
  POM4185  Petunia parviflora Philip A. Munz 1918-5-4 2203 Orange Laguna Beach. Comment
  RSA16333  Phacelia brachyloba Percy C. Everett 1935-6-18 720 Orange Santa Ana Mts, Main Divide Motorway 1.4 miles N of Los Pinos Potrero 1098 Comment
  RSA539386  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1988-6-2 4043 Orange Santa Ana Mtns: Maple Spirngs Truck Trail, 8.7km above Silverado Gate, 2.4km N Modjeska Peak. 1155 Comment
  OBI30179  Phacelia cicutaria var. hispida Nancy J. Mann 1976-5-23 s.n. Orange Charlton ranch, 1.2 mi N of Modjeska Cyn rd on Santiago Cyn rd, Santa Ana Mts Comment
  POM147493  Phacelia cicutaria var. hispida F. M. Reed 1928-5-11 5880 Orange West end of Carbon Canyon. Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA794334  Phacelia cicutaria var. hispida Justin M. Wood 2010-3-31 1450 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  RSA562740  Phacelia cicutaria var. hispida Steve Boyd, Tim Ross 1992-5-20 7456 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of wilderness in Lucas Canyon along a new section of trail heading up major side canyon northward to Sitton Peak Road (7S09), 305 Comment
  UCSB47622  Phacelia cicutaria var. hispida Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.2 km. S Lower San Juan Picnic Ground 393 Comment
  RSA741475  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2008-5-30 8 -123 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. at Santiago Creek Rd., near the power-line crossing, Irvine Ranch Reserve, Management Area 15. Comment
  HSC13701  Phacelia distans S. M. Clapp 1966-4-10 44 Orange 4 mi. into Black Star Canyon 183 Comment
  JEPS2401  Phacelia distans Alice King 1908-3-9 Orange Anaheim plains Comment
  RSA697776  Phacelia imbricata subsp. patula Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA16479  Phacelia minor Percy C. Everett 1935-6-19 7228 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA2112  Phacelia minor Carl B. Wolf 1931-3-6 1830 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA732082  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-3-25 34551 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA749521  Phacelia parryi Fred M. Roberts 2008-4-8 6846 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  HSC13728  Phacelia parryi J. J. Wagoner 1965-4-11 16 Orange 5 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  RSA697795  Phacelia racemosa Minor Warne 1934-03 s.n. Orange Barrenca near Irvine. Comment
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Apr 13 2016
  RSA428288A  Phacelia ramosissima H. C. Ackley 1926-05 5984 Orange Sunset Beach. Comment
  RSA582643  Phacelia ramosissima var. austrolitoralis Louis C. Wheeler 1932-6-22 843 Orange Newport Bay. 1 Comment
  RSA0003878  Phacelia ramosissima var. austrolitoralis J. T. Howell 1927-7-17 421 Orange Near Laguna Beach Comment
  UC537058  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange ravine Newport Beach 12 Comment
  CAS-BOT-BC250615  Phalaris minor Carl B. Wolf 1932-7-7 3854 Orange Bryant Ranch, Bixby Ave., 3/10 mi. E. of Los Alamitos Blvd., about 250 ft. E. of S.W. corner of N.W. 40 of N.E. of Sect. 31 T4S R11W 48 Comment
  IRVC1779  Phalaris minor C. Thompson 1965-5-4 s.n. Orange UC Irvine; General Services Bldg; Jamboree Road. Southern Coastal Comment
  UCR170307  Phalaris minor J. B. Anderson 1966-4-18 597 Orange South Coast, MacArthur Blvd. near Red Hill Road [between Santa Ana and Irvine, NE of John Wayne Airport] 9 Comment
  POM202587  Phalaris minor L. M. Booth 1932-5-19 1076 Orange Newport Bay. Comment
  IRVC1783  Phalaris paradoxa J. B. Anderson 1966-4-26 620 Orange UC, Irvine Campus; S of Science Lecture Hall. Southern Coastal Comment
  RSA627786  Phalaris paradoxa Scott D. White 1998-6-26 6786 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  SEINET10876692  Philodendron Thomas B. Croat 2003-4-5 Croat 87598 Orange Cultivated plants from Rick M. Cirino, Cosa Mesa, California. Originally from Brazil? Comment
  RSA615547  Phoenix canariensis Fred M. Roberts 1997-10-22 5051 Orange Bolsa Chica saltmarsh: north of Garden Grove East Wintersburg Channel, 0.6 km S Chica Survey Marker. 0 Comment
  RSA770727  Phoenix dactylifera Robert DeRuff 2008-07 570 Orange Upper Newport Bay, between Mariner s Drive and North Star Beach 6 Comment
  RSA459265  Pholistoma auritum M. B. Dunkle 1935-3-3 4347 Orange San Juan Canyon. 457 Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  RSA734907  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-6-17 35480 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA0072390  Photinia arbutifolia Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. [Orange or Riverside County] Comment
  POM3998  Phyla lanceolata D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon Comment
  UC25108  Phyla lanceolata A. J. McClatchie 1896-6-20 Orange Westminster Comment
  RSA0061169  Phyla nodiflora Robt. Allen, Trish Smith, Mike Kahle 2006-10-27 s.n. Orange Santa Ana Mountains region: Foothills along Santiago Creek, north side of Irvine Regional Park. 174 Comment
  RSA683934  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16129 Orange Laguna Beach, Orange County Comment
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA0127409  Physalis crassifolia Fred M. Roberts 2016-5-25 8062 Orange Irvine: San Joaquin Hills, Turtle Rock Community, tributary to Shady Canyon, 1.2 km SE summit of French Hill between Alejo and Tradewind Roads. 107 Comment
  UC570695  Physalis crassifolia Herbert L. Mason 1926-4-25 2933 Orange 5 mi s of Laguna Comment
  RSA733864  Physalis philadelphica Keith E. Hoffmaster 1928-5-23 536 Orange San Onofre. Comment
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Nov 19 2013
  RSA759246  Pickeringia montana var. tomentosa Robert Allen, Celia Kutcher 2007-5-19 s.n. Orange San Juan Trail, North flank of [New] Sugarloaf Peak, circa 2.2 air miles (3595) below (southwest of) trailhead at southern edge of Blue Jay Campground. Circa 2.5 air miles (3973m) above (northeast of) trailhead at Hot Springs Canyon. 886 Comment
  RSA549230  Picris echioides Scott D. White 1992-9-23 843 a Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  UCR210372  Picris echioides T. B. Salvato, Billy Deane 2006-10-16 1936 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCSC000843  Picris echioides I. J. Condit 2008-7-25 s.n. Orange Huntington Beach Comment
  RSA175269  Pinus attenuata Robert F. Thorne 1963-7-26 32824 Orange Trabuco District, Santa Ana Mts., Cleveland National Forest. 1159 Comment
  SD236117  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR132891  Piperia cooperi Adrian Wolf 2000-4-14 446 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.51 km SSE of Black Star Canyon Mine, North Baker Canyon Road 396 Comment
  RSA725540  Piptatherum miliaceum Fred M. Roberts, Robert L. Allen 2007-9-28 6606 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 Comment
  SEINET5642647  Pittosporum tobira Shelby J. Wood 2013-3-9 9 Orange Huntington Beach, Central Park.; 0 Comment
  CAS-BOT-BC354027  Plagiobothrys acanthocarpus R. E. Riefner, Jr. 2013-3-17 13 -44 Orange City of Irvine, Jeffrey Trail, vicinity of Shady Canyon Dr. at Fossil Rd. 47 Comment
  UCSB48072  Plagiobothrys acanthocarpus Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA699337  Plagiobothrys arizonicus L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA716095  Plagiobothrys collinus Fred M. Roberts, Melissa Ervin 2001-3-21 5386 Orange San Joaquin Hills: Upper San Canyon, c..a. 2km SE French Hill, within the Shady Cyn. Development. 98 Comment
  RSA0127411  Plagiobothrys collinus var. fulvescens Fred M. Roberts 2016-3-17 8006 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA3168  Plagiobothrys nothofulvus C. B. Wolf 1932-3-8 2695 Orange Santiago Dam at W base of Santa Ana Mts. 305 Comment
  UCSB48118  Plagiobothrys nothofulvus Roberts, Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 47; 7.2 km. by road E San Juan Capistrano; 1.3 km NE Viejo Survey Marker 98 Comment
  UC2030079  Plantago coronopus Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1121 a Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  RSA680562  Plantago erecta Scott D. White 2003-3-21 8814 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
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Oct 4 2010
  RSA749286  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  RSA401986A  Plantago erecta E. S. Spalding 1916-1 s.n. Orange Near Corona. Comment
  RSA789581  Plantago erecta subsp. erecta Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA698383  Plantago major Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA791464  Plantago major Keith E. Hoffmaster 1927-5-22 955 Orange Near Santa Ana. CP3. Comment
  UC1618068  Plantago ovata Donald G. Nelson 1935-3-30 194 Orange On Tonner lease, mouth of Brea Canyon. Comment
  RSA763  Plantago ovata var. fastigiata J. T. Howell 1927-6-9 70 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  JEPS4909  Plantago subnuda Lawrence M. Booth 1932-6-17 1208 Orange Bolsas Creek Comment
  RSA725533  Platanus X acerifolia Fred M. Roberts 2007-9-11 6567 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA0106543  Platanus racemosa Fred M. Roberts 2007-9-11 6572 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA731755  Platanus racemosa Fred M. Roberts, Sandy Leatherman 2007-11-9 6650 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  UCR240093  Platanus racemosa Dick Newell, Judy Booth 2012-11-11 308 Orange Peninsular Range; Santa Ana Mtns., Irvine, just east of eastern edge of Irvine Regional Park, east of Peters Canyon Rd. 189 Comment
  UCR241072  Platanus racemosa Dick Newell, Judy Booth, Robt. L. Allen 2013-4-6 324 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 671 Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 Comment
  CAS-BOT-BC414242  Plecostachys serpyllifolia R. E. Riefner, Jr. 2007-4-28 07 -188 Orange City of Newport Beach, between Dover Beach and North Star Beach, W side of Polaris Dr., midway between Morning Star Ln. and Evening Star Ln. 6 Comment
  OBI81438  Plecostachys serpyllifolia Unknown 2008-7-9 08 -220 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 5 Comment
  SEINET3828848  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-1 11 -73 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UC2061643  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  RSA731529  Plecostachys serpyllifolia R. E. Riefner 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 8 Comment
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Dec 13 2012
  RSA710412  Pluchea odorata Fred M. Roberts 2005-10-3 6300 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  SBBG125306  Pluchea odorata M. H. White 2006-9-23 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve, SW edge, along San Diego Crk, N of University Drive, E Hwy 73 2 Comment
  UCR146415  Pluchea odorata Sandra L. Leatherman 1998-9-3 45 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  UCR208347  Pluchea odorata O. F. Clarke 2004-7-19 s.n. Orange South Coast, Newport Back Bay, along Back Bay Dr. 6 Comment
  RSA131096  Pluchea odorata E. K. Balls, E. R. Blakley 1958-10-15 23721 Orange In Narrow Canyon E oif Laguna Canyon, S side Santa Cruz Island. 5 Comment
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Jun 27 2013
  JEPS30711  Pluchea odorata var. odorata Peter H. Raven 1961-10-15 16855 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  RSA683218  Pluchea purpurascens Scott D. White, Matt Carlton 2003-11-20 9871 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA472126  Pluchea sericea Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
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Nov 1 2013
  CAS-BOT-BC255535  Poa annua Ira L. Wiggins 1966-3-1 20485 Orange At corner of South Campus Drive and State College Blvd, Fullerton Comment
  IRVC1787  Poa annua J. B. Anderson 1966-4-25 619 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  UCD90349  Poa annua Beecher Crampton 1967-5-23 7955 Orange Orange County, 4 miles east of Irvine, UC South Coast Field Station. Comment
  IRVC24789  Poa secunda Karlin G. Marsh 1989-3-4 s.n. Orange Lomas Ridge, ridge between Hicks and Rattlesnake Canyons. Lomas de Santiago 210 Comment
  UCR170301  Poa secunda C. W. Sexton 1973-3-29 s.n. Orange South Coast, Newport Beach; Upper Newport Bay, hillside beside Back Bay Drive 15 Comment
  RSA708363  Poa secunda subsp. secunda Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  RSA5379  Polygala cornuta var. fishiae B. D. Stark 1932-12-30 4460 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA562806  Polygala cornuta var. fishiae Steve Boyd, Tim S. Ross 1992-5-20 7478 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. Comment
  UCD169749  Polygala cornuta var. fishiae R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon. 358 Comment
  RSA0054921  Polygonum aviculare Keith E. Hoffmaster 1926-12-18 490 Orange Santa Ana. Comment
  UCSB41859  Polygonum aviculare Matkin, Craig 1971-3-19 Orange At the corner of Chapman and Bitterbush in Orange. Comment
  CAS-BOT-BC414043  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-5-25 20667 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  RSA666101  Polygonum aviculare subsp. aviculare Fred M. Roberts, Michelle Lee 2001-6-4 5485 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. (Canada Gobernadora. 226 Comment
  UC1543012  Polygonum aviculare subsp. aviculare Donald G. Nelson 1936-5-29 430 Orange edge of lot along hwy between Marshall Avenue and Grand Avenue (on W. Commonwealth Ave.); Buena Park Comment
  RSA184163  Polygonum aviculare subsp. aviculare I. L. Wiggins 1965-11-7 20364 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  RSA466307  Polygonum coccineum J. Ewan 1931-7-31 4754 Orange Wesefall near Hungtinton Beach. Comment
  RSA195  Polygonum hydropiperoides J. T. Howell 1927-7-5 268 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA232239  Polygonum lapathifolium James Henrickson 1970-8-29 5308 Orange 3 miles NE of Huntington Beach in pasture just N of Bolsa Chica Salt Marsh. 0 Comment
  RSA718963  Polygonum lapathifolium Fred M. Roberts, Robert L. Allen 2006-10-8 6417 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  RSA788965  Polygonum lapathifolium Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49580 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA732242  Polypodium californicum A. C. Sanders, Fred M. Roberts 2008-4-22 35054 Orange Penisular Range; Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon. c. 3.5 mi. WSW of Silverado 493 Comment
  RSA733703  Polypodium californicum Minor Warne 1934-02 s.n. Orange Modjeska Canyon Comment
  IRVC3040  Polypodium californicum B. Reynolds 1965-4-19 HS0573 Orange Newport Beach; Upper Newport Bay. Southern Coastal Comment
  UCSB48374  Polypogon interruptus Roberts, Fred 1982-5-22 Orange Dana Point; jct. of Stone Hill Dr. & Selva Rd., 1.0 km. ESE Dana Hills High School; 1.7 km. SW Marco Forster Junior High School 40 Comment
  RSA697072  Polypogon interruptus Rankin s.n. Orange Irvine Park Comment
  IRVC12899  Polypogon monspeliensis B. T. Gittins 1967-6-11 2010 Orange Upper Newport Bay. southern coastal Comment
  IRVC22745  Polypogon monspeliensis Fred M. Roberts 1985-5-15 1806 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  RSA696314  Polypogon monspeliensis Anonymous s.n. Orange Santa Ana. Comment
  SEINET192612 Image available Polypogon monspeliensis C. B. Wolf 1932-6-13 13 Orange Fullerton; Malvern and Nicholas Avenues. 0 Comment
  UCR170136  Polypogon monspeliensis Jeffrey Ross, R. Zaka 1998-5-2 48 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  RSA679095  Polystichum imbricans subsp. curtum Fred M. Roberts 2003-6-25 5950 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA644958  Populus balsamifera subsp. trichocarpa R. E. Riefner, Adrian Wolf 2000-1-24 20 -116 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N of Saniago Creek and immediately N. of major stream fork. 305 Comment
  UCR174187  Populus balsamifera subsp. trichocarpa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33023 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  SD212718  Populus trichocarpa A. C. Sanders, Fred M. Roberts and Michelle Balk 2006-7-20 33023 Orange Santa Ana Mountains: San Juan Canyon, from Lower San Juan Picnis Area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  POM180684  Porophyllum gracile J. T. Howell 1929-3-2 4097 Orange Rocky hills on N side of Santa Ana Canyon. 152 Comment
  RSA488122  Porophyllum gracile Karlin G. Marsh 1984-2-15 1188 Orange Santa Ana Mtns: Casper's Regional Park, Rancho Carrillo Road, 4.4km NE visitor Center, 0.5km ENE Lucas Survey Mark, alt 415m 415 Comment
  UCR149034  Porophyllum ruderale Ralph Guerrero 2000-10-24 PDR 1223098 Orange Coastal Plains and Basins; South Coastal Plains region, Along roadside of vegetable crop field, Seal Beach Naval Weapons Station, Seal Beach Comment
  RSA753486  Portulaca oleracea A. C. Sanders, Fred M. Roberts 2008-9-18 36071 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  POM1018  Potamogeton nodosus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  CAS-BOT-BC453827  Potamogeton nodosus I. M. Johnston 1918-9-3 2144 Orange San Joaquin Hills. In Laguna Canon [Canyon] 106 Comment
  RSA573301  Prunus persica Steve D. Boyd, Tim S. Ross 1994-9-14 8358 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. 299 Comment
  RSA697115  Pseudognaphalium biolettii Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  UCR140802  Pseudognaphalium biolettii Robin G. Marushia 2004-4-16 020 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  UCR240259  Pseudognaphalium biolettii D. E. Bramlet 2003-3-20 3349 Orange South Coast, Donna O'Neill Reserve; NE corner of the reserve, 150 m west of Cristianitos Rd. and 1.9 km north of the E-W access road 134 Comment
  RSA450841  Pseudognaphalium biolettii J. P. Anderson 1966-3-11 430 Orange San Joaquin Hills, along road to Signal Peak, above Lower Coyote Canyon Comment
  RSA0126623  Pseudognaphalium californicum Fred M. Roberts 2012-4-24 7506 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  CAS-BOT-BC300530  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2011-10-19 11 -147 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  CHSC108408  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 31 Comment
  SD187363  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 157 Orange San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. 31 Comment
  SD263581  Pseudognaphalium leucocephalum Jim Riley 2013-10-15 122 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC1922345  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. Comment
  UCSB52423  Pseudognaphalium microcephalum Roberts, Jr., Fred 1982-9-15 Orange Rancho Mission Viejo; 6.4 km. ENE San Juan capistrano by road on Rte. 74; 0.9 km. NNE Viejo Peak 93 Comment
  UCR240071  Pseudognaphalium ramosissimum Dick Newell, Judy Booth 2012-8-12 283 Orange South Coast, Newport Beach on Back Bay Drive, 0.6 mi north of Big Canyon parking lot 3 Comment
  UCR274176  Pseudognaphalium ramosissimum Dick Newell, Don Millar, Judy Booth 2016-6-29 430 Orange South Coast, Newport Beach, on Back Bay Dr., 0.15 mile NNE of Shellmaker Road 5 Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA587887  Psilocarphus brevissimus Fred M. Roberts 1990-5-7 4612 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA609946  Psilocarphus brevissimus D. Bramlet 1993-4-25 2333 Orange University of California, Irvine Campus, UCI Ecological Reserve. This site is 150 ft. south of Berkeley Ave. and 1000 ft. west of the northeast reserve entrance 41 Comment
  UCR154337  Psilocarphus brevissimus var. brevissimus Mark A. Elvin 2004-5-2 3413 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  SD245373  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along creek. Comment
  SD233345  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, ca. 0.8 km W Marine Institute (Dana Point Harbor). 49 Comment
  UCSB48050  Pterostegia drymarioides Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  SEINET6060358  Pulicaria hispanica Unknown 1961-10-15 16847 Orange Anaheim: Santa Ana River Bed Comment
  IRVC25158  Pulicaria paludosa Fred M. Roberts 1986-9-3 3127 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC29815  Pulicaria paludosa Mary H. White 2006-9-23 92306 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA708450  Pulicaria paludosa Mark A. Elvin 2003-8-24 3013 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  UCR149385  Pulicaria paludosa Scott D. White, Matt Carlton 2003-11-20 9863 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  UCD47720  Quercus X acutidens James Trumbley 1980-1 s.n. Orange Crystal Cove State Park, ca. 1 mile inland, in Moro Canyon, a coastal canyon between Laguna Beach and Corona del Mar, Orange County, California. 30 Comment
  UCSB52415  Quercus X acutidens Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.: San Juan Canyon, Rte. 74, 0.5km by road SW Lower San Juan Picnic Ground, 425 Comment
  RSA12362  Quercus X grandidentata E. R. Johnson 1934-1-6 5562 Orange Santa Ana Mts., on slopes of Sierra Peak at about the head of Claymine Canyon. 762 Comment
  CAS-BOT-BC61814  Quercus agrifolia John Thomas Howell 1927-6-21 2565 Orange hills on north side of Santa Ana Canon 152 Comment
  IRVC1323  Quercus agrifolia Gail Howard 1965-5-2 s.n. Orange Newport Beach: Back Bay Hills. Southern Coastal Comment
  RSA476854  Quercus agrifolia Claire Kibbe 1936-07 19954 Orange Santa Ana Canyon. Comment
  RSA697032  Quercus agrifolia Minor Warne 1934-5-10 s.n. Orange Santa Ana Mountains. Comment
  IRVC20824  Quercus agrifolia var. agrifolia Fred M. Roberts 1982-7-25 784 Orange South Laguna; Niguel Hill, canyon on S flank; 0.9km ESE Aliso Peak; 1.1km NNW Bench Mark 133 Southern Coastal 195 Comment
  RSA663279  Quercus berberidifolia R. E. Riefner Jr., Adrian Wolf 2000-6-1 20 -454 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  RSA735034  Quercus berberidifolia Scott D. White, Justin M. Wood 2008-4-10 11850 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  UCR119798  Quercus berberidifolia R. E. Riefner Jr. 2000-3-18 20- 136 Orange Cleveland National Forest. Ridge-top east of Fremont Canyon and west of Hidden Valley 732 Comment
  UCR132889  Quercus berberidifolia Adrian Wolf 2000-6-1 468 Orange Santa Ana Mtns., North Ranch Policy Plan Area, West Fremont Canyon 534 Comment
  RSA0059077  Quercus berberidifolia CNPS Accuracy Assessment Team 2014-7-19 461 B Orange Laguna Coast Wilderness Park. Comment
  IRVC29765  Quercus chrysolepis Barry S. Nerhus, Mark A. Elvin 2006-11-4 6 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA12732  Quercus chrysolepis Carl B. Wolf, E. R. Johnson 1933-11-3 5528 Orange Main Divide Motorway on slopes of Modjeska Peak 1372 Comment
  RSA734865  Quercus chrysolepis Keith E. Hoffmaster 1931-1-1 407 Orange Santa Ana Mountains Comment
  UCR241915  Quercus dumosa Fred M. Roberts 2012-5-10 7560 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA716771  Quercus wislizeni Fred M. Roberts, Michelle Balk, Robert Allen, Carol Roberts 2004-7-18 6076 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  SEINET7766843  Quercus wislizeni Unknown 1966-8-22 2389 Orange O'Neill State Park Comment
  RSA679225  Quercus wislizeni var. frutescens Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA68306  Rafinesquia californica G. R. Campbell 1951-5-30 16101 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  UCR97814  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  UC1971227  Ranunculus californicus Scott D. White, Noel Davis 1998-4-24 6344 Orange MISSION VIEJO AREA: Aliso Creek watershed, east of El Toro Rd. just N of junction. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. USGS Santiago Peak 7.5' Quad. Comment
  IRVC1149  Raphanus sativus C. Duncan 1965-4-4 Orange Newport Beach Comment
  IRVC1150  Raphanus sativus R. Nesheim 1965-4-10 Orange Bayside Dr. near Balboa Island. Newport Beach Comment
  UCSB41794  Raphanus sativus MacKay, Shelley 1971-5-11 Orange 0.1 mile west of Bloomfield Avenue, Cypress 30 Comment
  CDA3881  Reseda alba Johnson 1939-4-1 Orange Los Angeles - Garden Grove. 0 Comment
  UCR125475  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  UC592928  Rhamnus californica subsp. californica P. C. Everett 1936-9-19 Orange Silverado Canyon, in vicinity of forest service road gate at base of road Santa Ana Mountains 762 Comment
  CAS-BOT-BC56026  Rhamnus ilicifolia P. C. Everett 1935-6-19 7242 Orange Santa Ana Mts., Trabuco Canyon, 2 mi. below Forest Service Patrol Station 365 Comment
  CAS-BOT-BC56032  Rhamnus ilicifolia P. C. Everett 1935-6-17 7138 Orange Santa Ana Mts., Coldwater Canyon, 1.2 mi. above Glen Ivy Resort 457 Comment
  CAS-BOT-BC56039  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1845 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope of the Santa Ana Mts. 457 Comment
  POM188038  Rhamnus ilicifolia Marcus E. Jones 1931-3-23 s.n. Orange Laguna. Comment
  RSA2084  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA463  Rhamnus ilicifolia J. T. Howell 1927-7-24 465 Orange Claymine Canyon near Sierra Peak. 152 Comment
  RSA791876  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49614 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  UC592829  Rhamnus ilicifolia Carl B. Wolf and E. R. Johnson 1933-11-3 Orange Silverado Canyon, base of Silverado Motorway Santa Ana Mts. 731 Comment
  POM9767  Rhamnus ilicifolia P. A. Munz 1921-2-26 4681 Orange Brea Canyon. 305 Comment
  CAS-BOT-BC167873  Rhus integrifolia John Thomas Howell 1927-6-16 2445 Orange North side Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC167875  Rhus integrifolia H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CAS-BOT-BC167921  Rhus integrifolia Ira L. Wiggins 1966-2-25 20474 -A Orange Firestone Boy Scout Reservation, in hills E. of Brea Comment
  RSA662185  Rhus integrifolia Giancarlo Massarotto 1981-5-2 42 Orange Property off the Pacific Coast Hwy. between Del Mar and Laguna Beach Canyon, S of Pelican Hill. Comment
  UCR220957  Rhus ovata Dick Newell, Don Millar 2010-3-16 14 Orange Peninsular Range; Santa Ana Mtns. Foothills, mouth of Fremont Canyon, 0.25 mi. north of Irvine lake dam face 206 Comment
  UCR76183  Rhus ovata B. G. Pitzer, S. Hemstreet 1992-5-27 1960 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, along Forest Service Road 3S04 to Blue Jay Group Campground, off Hwy 74 (Ortega Hwy), c. 2 mi west of El Cariso Campground 765 Comment
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  RSA0037200  Rhus ovata Paul Shirokawa 1998-4-28 11 Orange Cleveland National Forest - Trabuco Ranger District, 4.75 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.6 miles along Blue Jay Road. 1066 Comment
  RSA797918  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49829 Orange Santa Ana Mountains: Trabuco Canyon, ca. 8 km east of Trabuco Oaks 860 Comment
  RSA0024856  Ribes cereum R. H. McArthur 1934-10-2 s.n. Orange Santiago Canyon below Modjeska. Comment
  OBI5870  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange 1 mi N of base of Modjeska Grade, W slope of Santa Ana mts 305 Comment
  POM12991  Ribes indecorum P. A. Munz, I. M. Johnston 1922-5-18 5310 Orange Santa Ana River Canyon. 457 Comment
  UC484236 Image available Ribes indecorum C. B. Wolf 1931-3-6 1833 Orange 1 1/2 mi below Trabuco Oaks (Trabuco Canyon Road, w slope of mts.); Santa Ana Mts. 304 Comment
  RSA1335  Ribes malvaceum var. viridifolium J. T. Howell 1929-2-11 1225 Orange Claymine Canyon, Santa Ana Mts. 305 Comment
  RSA184142  Ribes malvaceum var. viridifolium I. L. Wiggins 1966-2-4 20419 Orange Trabuco Canyon, about 1/2 mi. above canyon mouth Comment
  SD27978  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 Orange Rancho Santa Ana, Santa Ana Canyon, in canyon west of Roundtop Peak. 456 Comment
  UCR241071  Ribes malvaceum var. viridifolium Dick Newell, Judy Booth 2013-3-24 323 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  SD255194  Ribes malvaceum var. viridifolium R. F. Thorne, E. W. Lathrop 1977-5-18 49730 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail. Comment
  RSA0018257  Ribes roezlii F. W. Peirson 1923-5-6 3497 Orange On trail from Trabuco Canyon to Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA0054906  Ribes sanguineum var. glutinosum G. Jentges 1932-3-5 21 Orange In wild plot east of Science Bldg. [Most likely Santa Ana Jr. College]. Comment
  POM293817  Ribes speciosum Lyman Benson 1947-4-27 12336 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA658211  Ribes speciosum T. A. Daubert 1991-5-19 661 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  UCR140796  Ribes speciosum Robin G. Marushia 2004-5-4 016 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  OBI70101  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University dr along tidal Crk just E of I-73. 9 Comment
  RSA797435  Ricinus communis Keith E. Hoffmaster 1935-2-17 s.n. Orange Near Costa Mesa Comment
  IRVC25524  Robinia pseudoacacia Fred M. Roberts 1987-11-17 3755 Orange Serrano Creek, near Trabuco Road west of Canada Road, 2.5km NNE El Toro Fire Station, Lake Forest 146 Comment
  JEPS51543  Romneya coulteri Alice King Jun 1908 Orange near Santa Ana (in hills) Comment
  RSA17464  Romneya coulteri Percy C. Everett 1936-9-19 8270 Orange Santa Ana Moutains, Silverado Canyon. In vicinity of forest service road gate. 762 Comment
  RSA446201  Romneya coulteri N. C. Cooper 1949-5-1 3934 Orange San Juan Canyon. 457 Comment
Read comments
Aug 11 2011
  SD72770  Romneya coulteri F. R. Fosberg 1931-6-21 S 5094 Orange Lower Santiago Canyon, Orange County Comment
  CAS-BOT-BC92182  Romneya coulteri var. coulteri J. Ewan 1929-6-28 3625 Orange Santa Ana Canyon above Santa Ana. 609 Comment
  RSA446207  Romneya coulteri var. trichocalyx Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  CSUSB1432  Rorippa nasturtium-aquaticum Dave Cerf 1971-5-2 S. N. Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  CAS-BOT-BC147386  Rosa californica I. M. Johnston 1918-9-3 2140 Orange Laguna [Canon] Canyon, San Joaquin Hills 76 Comment
  POM10514  Rosa californica Philip A. Munz, R. D. Harwood 1920-4-24 3752 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  RSA550606  Rosa californica Fred M. Roberts 1989-4-26 4324 Orange Lower Blind Canyon near mouth, 9.2 km SW Sierra Peak, 1.0 km N Irvine Lake spillway. 207 Comment
  POM2665  Rosa californica I. M. Johnston 1918-9-3 2140 Orange San Joaquin Hills. Laguna Canyon. upper end of the 90 degree curve in the road 76 Comment
Read comments
Jun 23 2015
  RSA0045579  Rosa californica R. H. McArthur 1934-4-21 s.n. Orange Limestone Boyscout Camp. Comment
  RSA221063  Rubus ursinus E. W. Lathrop 1966-5-1 6259 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest, Santa Ana Mountains. 396 Comment
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  SD255272  Rubus ursinus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49789 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA666107  Rumex crispus Fred M. Roberts, Michelle Lee 2001-6-18 5496 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  SEINET3823332 Image available Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UC536909  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  POM201758  Rumex crispus L. M. Booth 1932-5-12 s.n. Orange Newport Bay. Comment
  CAS-BOT-BC433493  Rumex fueginus P. A. Munz 1918-5-4 2197 Orange Laguna Lakes Comment
  POM2357  Rumex maritimus P. A. Munz 1918-5-4 2197 Orange Laguna Lakes, Laguna. Comment
  SD247490  Rumex obtusifolius A. C. Sanders, Fred M. Roberts 2008-7-7 36004 Orange Peninsular Range; Santa Ana Mountains: Weir Canyon at powerline crossing, 1.0 mi (air) SSE of Walnut Canyon Roservoir (Black Star Canyon 7.5'Q) 226 Comment
  POM201765  Rumex salicifolius L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  RSA0013954  Rumex salicifolius Fred M. Roberts 2008-5-7 6941 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  UCR173934  Rumex salicifolius A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33054 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA317355  Ruppia maritima James R. Shevock 1974-5-3 3453 Orange Newport Back bay along Back Bay Drive Comment
  SEINET5471003 Image available Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 mi. NW of Huntington Beach- Inner Bolsa Bay- froming very dense stand along margins of bay. Comment
  RSA728661  Sagina saginoides R. E. Riefner 2003-2-22 03 -124 Orange City of Laguna Beach, Moulton Meadows Park, near Balboa Ave., and Del Mar Ave. Mima Mound Terrain habitat. 261 Comment
  HSC24264  Salicornia bigelovii James Henrickson 1970-9-5 5314 Orange 3.5 mi. NW of Huntington Beach, 0.25 mi. SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  SFV1096  Salicornia pacifica A. M. Johnson 1932-9-16 4148 Orange Newport. Edge of salt marsh. Comment
  JEPS59850  Salicornia subterminalis Lawrence M. Booth 1932-5-30 1135 Orange Newport Bay Comment
  RSA357005  Salicornia virginica R. F. Thorne 1975-4-6 45568 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA70036  Salicornia virginica F. W. Peirson 1924-8-29 5069 Orange roadside 4 miles south of Santa Ana. Comment
  UCR158157  Salicornia virginica Adrian Wolf 1998-5-27 341 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  POM48006  Salicornia virginica I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA5820  Salicornia virginica C. B. Wolf 1932-6-28 3802 Orange 25 ft. west and 600 ft. north of SE corner of SE 1/4 sect 29. 9 Comment
  POM177842  Salix exigua Marcus E. Jones 1930-3-3 26532 Orange Santa Ana Mountains. Comment
  POM362552  Salix exigua Albert J. Perkins 1920-6-12 s.n. Orange Near Serra. Comment
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Nov 1 2013
  RSA357008  Salix exigua Robert F. Thorne 1975-4-6 45572 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA703731  Salix exigua Fred M. Roberts, David E. Bramlet 2004-7-30 6091 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn. along Cristianitos Ck., 1.1 km SSW Gato Gate and 0.32km W Cristianitos Road. 73 Comment
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  SJSU255  Salix exigua C. B. Wolf 1932-4-15 2953 Orange S of pear orchard Rancho Santa Ana near Santa Ana R, Santa Ana Canyon 121 Comment
  UC492441  Salix exigua Carl B. Wolf 1932-7-7 3845 Orange near town of Los Alamitos (Rancho Santa Ana along ditch on Bixby Ave., 1 km. w of Hansen Rd., Bryant Ranch) Comment
  UCR174214  Salix exigua A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33041 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR210360  Salix exigua T. B. Salvato, Billy Deane 2006-10-16 1929 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR247916  Salix exigua Fred M. Roberts 2012-7-18 7675 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill 37 Comment
  SD1027  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  UC536932  Salix exigua var. hindsiana Lawrence M. Booth 1932-6-9 1177 Orange 1 mi from ocean Santa Ana R. Comment
  POM2033  Salix gooddingii M. Harbour 1915-4-1 s.n. Orange Olive. Comment
  RSA587881  Salix gooddingii Fred M. Roberts 1990-5-8 4618 Orange Chino Hills: Soquel Canyon, c.a. 1.2 km NNW Gilman Peak. Comment
  RSA6449  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA759168  Salix gooddingii A. C. Sanders 2008-5-28 35446 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  SD133007  Salix gooddingii Andy C. Sanders 1990-10-6 10184 Orange Newport Bay, North Star County Beach on the SW end of the bay, ca 2 km inland of Hwy 1 3 Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  LA208694  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7680 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA725464  Salix laevigata Fred M. Roberts 2007-8-6 6553 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA725508  Salix laevigata Fred M. Roberts 2007-9-11 6566 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA0071937  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 898 .2 Orange Black Star Canyon. Comment
  UCSB52859  Salix laevigata Roberts, Fred; Camp, H. 1984-4-24 Orange Wagon Wheel Regional Park: Wagon Wheel Canyon, 2.9km ENE Median Rancho Survey Mark; 0.5km WNW Bench Mark 422 135 Comment
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Oct 28 2018
  CAS-BOT-BC125331  Salix lasiandra var. lasiandra R. E. Riefner, Jr. 2006-10-4 06 -475 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lake Forest, Aliso Creek near Portola Parkway at El Toro Rd. 225 Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  RSA700177  Salix lasiolepis R. H. McArthur 1934-2-8 s.n. Orange Santiago Creek at Bristol Comment
  UCSB47979  Salix lasiolepis Roberts, Fred 1980-2-17 Orange Along Camino Capstrano road, 1.0 km south of Avary Parkway, southern Mission Viejo 48 Comment
  CAS-BOT-BC128464  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1966-3-22 20549 Orange Along stream bank, bottom of Silverado Canyon, about 5 mi above Ranger Station, Cleveland National Forest Comment
  RSA737855  Salix lucida subsp. lasiandra R. E. Riefner 2008-5-20 8 -108 Orange Irvine Ranch Reserve, North Irvine Ranch, S Donaldson Ranch ca. 0.75 mi along West Fork of upper Fremont Canyon. 405 Comment
  RSA0005848  Salix nigra var. vallicola L. R. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC126303  Salix sessilifolia Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon 120 Comment
  CAS-BOT-BC126305  Salix sessilifolia Carl B. Wolf 1932-3-16 2715 Orange Rancho Santa Ana, Santa Ana River bottom 121 Comment
  RSA783248  Salsola J. D. Olmsted 1959-9-22 983 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  RSA12656  Salsola tragus E. R. Johnson 1934-7-26 6040 Orange Grain field west of the Rancho Santa Ana Botanic Garden. 198 Comment
  UCLA55660  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA411337  Salvia apiana N. C. Cooper 1949-5-1 3944 Orange San Juan Canyon. 457 Comment
  RSA663  Salvia apiana J. T. Howell 1927-6-3 s.n. Orange Botany Garden, Rancho Santa Ana. 152 Comment
  OBI30083  Salvia carduacea T. Pringle 1966-4-27 91 Orange RR Cyn Rd by RR Cyn Lake turnoff Comment
Read comments
Sep 6 2020
  RSA1566  Salvia leucophylla J. T. Howell 1928-7-10 1095 Orange Black Star Canyon, Santa Ana Mts. 457 Comment
  RSA666  Salvia leucophylla J. T. Howell 1927-6-8 60 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA683071  Salvia mellifera Fred M. Roberts 2003-3-13 5593 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA731981  Salvia mellifera A. C. Sanders 2008-4-8 34779 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  SBBG45102  Salvia mellifera E. R. Johnson 1935-1-14 Orange open firebreak on slopes of Sierra Pk, along rd to Claymine Cyn 609 Comment
  UCLA69968  Salvia mellifera Martha Hilend Apr 1921 45 Orange Fullerton, Little Bear Lake; Orange County Park Comment
  RSA16487  Sambucus caerulea Percy C. Everett 1935-6-18 7200 Orange Santa Ana Mts., summit of Santiago Pk. 1732 Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  IRVC26757  Sambucus mexicana Peter A. Bowler 2003-4-26 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; along marsh road. Southern Coastal 6 Comment
  IRVC332  Sambucus mexicana E. McRae 1965-3-30 Orange Corna del Mar High School. Newport Beach Comment
  UCR193364  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  CAS-BOT-BC238826  Sambucus nigra subsp. caerulea Carl B. Wolf 1931-7-24 2292 Orange Ravine at Olinda, lower end of Carbon Canyon 152 Comment
  CAS-BOT-BC238832  Sambucus nigra subsp. caerulea John Thomas Howell 1927-6-1 Orange Southern Puente Hills, Santa Ana Canon [Canyon] 152 Comment
  RSA0073648  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 Orange San Joaquin Hills: Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak. 167 Comment
  UCR241900  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  IRVC25573  Sanicula arguta Fred M. Roberts 1988-3-17 4211 Orange Aliso Canyon, 3.3km SSE Moulton Peak, Aliso-Wood Canyon Regional Park 61 Comment
  RSA471418  Sanicula arguta M. B. Dunkle 1933-4-9 3285 Orange Dana Point Comment
  UCR192231  Sanicula arguta A. C. Sanders, Fred M. Roberts 2008-5-6 35268 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  RSA625802  Sanicula crassicaulis Scott D. White, Noel Davis 1998-4-24 6341 Orange Santa Ana Mountains foothills. Mission Viejo Area: Aliso Creek watershed, E of El Toro Road, just N of the junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. 305 Comment
  SD173117  Satureja chandleri Juergen Schrenk 2004-5-6 N 3 Orange Santa Ana Mountains, San Juan Trail Comment
  SD41969  Satureja chandleri Darley F. Howe 1947-4-29 1555 Orange San Juan Creek Comment
  UCR47863  Satureja chandleri David Charlton 1987-5-4 s.n. Orange Santa Ana Mtns., Chiquito Basin, Trail from Blue Jay Campground to Chiquito Falls 762 Comment
  RSA749467  Saxifraga californica Fred M. Roberts 1999-4-22 5187 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  RSA0036019  Schinus molle Robert F. Thorne 1977-11-21 50808 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  UCR80006  Schinus terebinthifolius Scott D. White 1992-10-1 952 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  RSA0027435  Schoenoplectus americanus Fred M. Roberts 2012-7-18 7673 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus, of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA357010  Schoenoplectus americanus Robert F. Thorne 1975-4-6 45574 Orange San Joaquin Marsh: Near Irvine and coast. Comment
  RSA797438  Schoenoplectus americanus Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  RSA92  Schoenoplectus americanus J. T. Howell 1927-7-19 444 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA603304  Schoenoplectus californicus Scott D. White, B. Leatherman 1997-6-12 5331 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 mi E of I-15 / Hwy 74 junction. 46 Comment
  UCR210371  Schoenoplectus californicus T. B. Salvato, Billy Deane 2006-10-16 1937 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  RSA233015  Schoenoplectus maritimus Christopher Davidson, Gerald L. Benny 1971-6-15 1554 Orange Carbon Canyon, 1 mile SW of Carbon Canyon mineral spring. Comment
  RSA91578  Schoenoplectus maritimus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon, Laguna Beach. 107 Comment
  POM6408  Scirpus acutus var. occidentalis Phillip A. Munz, L. T. Street, G. Williams 1914-5-3 2661 Orange Santa Ana River Canyon. Comment
  IRVC29727  Scirpus americanus Mark A. Elvin, Barry S. Nerhus 2006-11-4 5258 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA0045321  Scrophularia californica Minor Warne 1934-03 s.n. Orange Gypsum Canyon. Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  RSA450842  Senecio californicus J. B. Anderson 1966-2-26 413 Orange San Joaquin Hills: South facing slope at head of Moro Canyon along jeep road 244 Comment
  IRVC901  Senecio flaccidus var. douglasii E. Cowper 1965-4-9 Orange [Newport] Back Bay. Newport Beach Comment
  RSA685173  Senecio linearifolius Scott D. White 2003-7-7 9613 Orange Irvine, UC Irvine Campus, directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.); Tustin. 70 Comment
Read comments
Oct 23 2007
  RSA702682  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  RSA743379  Senecio vulgaris Fred M. Roberts 2008-4-9 6859 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  RSA747607  Senecio vulgaris Fred M. Roberts 2000-5-4 5314 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  IRVC24099  Senna multiglandulosa Fred M. Roberts, R. L. Allen 1985-9-3 2201 Orange Lower San Juan Canyon, Hwy 74, c.a. 14.4km NE San Juan Capistrano by road, Casper's Regional Park 184 Comment
  IRVC25222  Sesuvium verrucosum Fred M. Roberts 1986-11-4 3213 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  RSA4818  Sesuvium verrucosum James Snow 1932-1 s.n. Orange Bryant Ranch: Near Long Beach. Station # 4. Plant # 1. Comment
  RSA159413  Setaria parviflora I. L. Wiggins, John H. Thomas 1962-6-27 309 Orange Orange County, weeds near intersection of 18th and Main Streets, Santa Ana Comment
  UCR236679  Setaria parviflora Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7101 Orange Peninsular Ranges, Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana River, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river 87 Comment
  IRVC1829  Setaria sphacelata I. L. Wiggins 1965-9-26 20266 Orange California State College at Fullerton: orange grove just S of Letters and Science Building. Southern Coastal Comment
  RSA789226  Sidalcea malviflora Naomi S. Fraga 2009-5-11 2715 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR191009  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR256943  Sidalcea malviflora Naomi Fraga 2009-5-11 2715 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA788922  Sidalcea malviflora subsp. malviflora Fred M. Roberts 1999-6-23 5244 Orange Peninsular Range, Santa Ana Mtns. Region: Lomas de Santiago: tributary to Santiago Creek, ridge between Limestone Cyn, and Santiago Creek wash across from Pancho Canyon, 1.6 km ENE Bolero Spr. and 1.6 km NNW Bolero Lookout. 396 Comment
  IRVC26690  Sidalcea malviflora subsp. sparsifolia Mark A. Elvin 2004-4-4 3232 Orange UCI Arboretum Southern Coastal 15 Comment
  CAS-BOT-BC205743  Sidalcea neomexicana subsp. thurberi LeRoy Abrams 1903-4-17 3257 Orange Between Tustin and Myford Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano Comment
  RSA732147  Silene antirrhina A. C. Sanders, Fred M. Roberts 2008-4-22 35011 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir. 213 Comment
  RSA732075  Silene gallica A. C. Sanders, Fred M. Roberts 2008-3-25 34563 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR102033  Silene gallica B. G. Pitzer 1997-3-25 3012 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA289  Silene laciniata subsp. major J. T. Howell 1927-7-28 512 Orange Nolina Canyon, Rancho Santa Ana 152 Comment
  RSA438887  Silene laciniata subsp. major M. B. Dunkle 1934-6-18 3997 Orange San Juan Canyon 305 Comment
  RSA439886  Silene laciniata subsp. major M. B. Dunkle 1933-5-30 3571 Orange Carbon Canyon Comment
  UCR209365  Silene laciniata subsp. major Fred M. Roberts, Linda Farley 2008-3-28 6831 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA751429  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-7-3 35695 Orange Santa Ana Mtns.: Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir. 275 Comment
  CAS-BOT-BC75234  Sisymbrium irio L. R. Abrams 1936-4-5 13714 Orange Rancho Santa Ana, Botanic Garden. Santa Ana Canyon. Comment
  RSA649292  Sisymbrium irio R. W. Hufstader 1971-2-28 18 Orange Collected by State College Blvd. north of the campus about one mile. Comment
  IRVC1189  Sisymbrium orientale D. Pfirrmann 1965-4-21 Orange 2179 Orange Ave. Costa Mesa Comment
  UCR230834  Sisymbrium orientale Dick Newell, Don Millar 2011-6-18 177 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, just north of the Lake Irvine dam 204 Comment
  JEPS64284  Sisyrinchium bellum Alice King 1908-4-19 Orange Santa Ana Mountains Comment
  RSA0127338  Sisyrinchium bellum Fred M. Roberts 2016-3-17 8020 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA732226  Sisyrinchium bellum A. C. Sanders, Fred Roberts 2008-4-22 35029 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  SD236123  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35299 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR192074  Sisyrinchium bellum A. C. Sanders, Fred M. Roberts 2008-5-6 35250 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  HSC13908  Sisyrinchium bellum J. J. Wagoner 1965-4-11 19 Orange 4 mi. N of Modjeska Canyon near Irvine Lake along the Irvine road 152 Comment
  CDA20833  Solanum americanum P. Akers 2006-3-25 PA 7 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 Comment
  POM201716  Solanum americanum L. M. Booth 1932-6-28 1213 Orange Bolsas Marsh. Comment
  UCR137448  Solanum americanum Scott D. White, Brian Leatherman 1997-6-12 5309 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR217467  Solanum americanum Mark A. Elvin 2003-2-23 2314 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA788958  Solanum douglasii Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49561 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UC933970  Solanum douglasii Elton F. Paddock 1951-7-22 411 Orange near San Diego County line (San Clemente State Beach, near picnic tables, near railroad tracks); San Clemente State Beach Comment
  UCR100461  Solanum douglasii B. G. Pitzer 1996-4-30 2762 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR194994  Solanum douglasii A. C. Sanders, Fred M. Roberts 2008-8-7 36003 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCR221897  Solanum douglasii Dick Newell, Don Millar 2010-10-5 41 Orange South Coast, city of Irvine, on Portola Pkwy. 1/4 mile east of Orchard Hills Rd. at Irvine Ranch Conservancy headquarters 95 Comment
  RSA0020074  Solanum douglasii Stephen Bruff s.n. Orange Lemon Heights. Comment
  UCSB18231  Solanum douglasii Daniel, Dick 1964-3-28 Orange Silverado Canyon Road; 5.1 miles NW of junction with Santiago Canyon Road; approximately 10 miles W of Irvine Lake 365 Comment
  UCR44897  Solanum nigrum B. G. Pitzer, L. F. LaPre 1986-10-20 317 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  CAS-BOT-BC156709  Solanum umbelliferum P. A. Munz; L. T. Street; Williams 1919-5-3 2650 Orange Santa Ana River [Canon] Canyon Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  RSA80386  Solanum umbelliferum F. W. Peirson 1925-4-10 5737 Orange In Silverado Canyon. 610 Comment
  SBBG104113  Solanum umbelliferum B. Pitzer with S. Hemstreet 1992-5-21 1943 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on an old paved rd 640 Comment
  UCR2925  Solanum umbelliferum R. Oshima 1963-5-2 050263- 10 Orange Peninsular Range; Santa Ana Mtns., 2 mi west of the Riverside County line in a draw. 15 yards up the draw under oaks Comment
  RSA0039365  Solanum virginianum Justin M. Wood 2013-9-5 5120 Orange Santa Ana Canyon: Between the Santa Ana River and the Green River Golf Course, in a recently planted restoration area. Roughly 0.5 miles west of the Riverside County Line. 127 Comment
  UCR241050  Soleirolia soleirolii Robert DeRuff 2012-9-27 554 B Orange South Coast, Upper Newport Bay, adjacent to Back Bay Dr. just past Newporter Canyon 3 Comment
  RSA753970  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  UCR193846  Solidago californica A. C. Sanders, Fred M. Roberts 2008-7-16 35853 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA943  Solidago confinis J. T. Howell 1927-10-29 s.n. Orange Bryant Ranch near Long Beach. 15 Comment
  UCR250137  Solidago velutina subsp. californica Dick Newell, Judy Booth 2013-11-17 342 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, 1.5 mil. NE of Maple Springs gate 701 Comment
  CAS-BOT-BC364909  Solidago velutina subsp. californica Mrs. R. W. Summers 1887-8-1 s.n. Orange Attwoods [Atwood ?] Hill Comment
  IRVC920  Sonchus oleraceus L. Stilgenbauer 1965-4-15 Orange Corona del Mar, 339 Milford. Newport Beach Comment
  RSA184147  Sonchus oleraceus I. L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  UCR237816  Sonchus oleraceus Mark A. Elvin 2003-2-2 2290 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  IRVC15381  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  RSA700185  Sorghum halepense Jeanne Paxton 1934-5-1 s.n. Orange Lemon Heights Comment
  CAS-BOT-BC235380  Spartina foliosa Joseph Andorfer Ewan 1932-7-28 7709 Orange East end of Newport Bay Comment
  HSC24440  Spartina foliosa Christopher Davidson 1970-7-27 1505 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  POM122350  Spartina foliosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA483174  Spartina foliosa Anonymous 1914-7-6 31 Orange Growing in salt marsh at Newport Comment
  SD80955  Spartina foliosa James Henrickson 1970-7-24 5024 Orange 2I(c) miles NW of Huntington Beach along south channel of Inner Bolsa bay, adjacent to Pacific Coast Hy. in Bolsa Chica Salt Marsh Comment
  IRVC361  Spergula arvensis M. Savage 1965-3-12 Orange Irvine Terrace. Newport Beach Comment
  IRVC362  Spergula arvensis M. Savage 1965-4-20 Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR266419  Spergularia D. E. Bramlet 2009-11-27 4430 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  CLARK-A1528-975  Spergularia bocconi Patricia A. Andrews 1975-6-26 5929 Orange Capistrano Bay Beach 9 Comment
  UCR137445  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA0097845  Spergularia macrotheca E. R. Johnson 1927-6-10 76 Orange Bryant Ranch, near Long Beach. 15 Comment
  CAS-BOT-BC390858  Spergularia marina Munz; Street; Williams 1919-5-4 2682 Orange Laguna Canon [Canyon] Comment
  CAS-BOT-BC390854  Spergularia marina Carl B. Wolf 1932-6-28 3783 Orange Bryant Ranch, edge of field on Bryant Ave., 300 ft. west of north east corner of N.W.40 of S.E.160 of Sect. 27 T4S R11W Comment
  RSA47078  Spergularia rubra Albert J. Perkins 1926-4-27 14728 Orange SAnta Ana, Mr. Perknis yard Comment
  RSA478077  Spergularia rubra Albert J. Perkins 1922-5-27 s.n. Orange Dr. Whi...(?) garden Comment
  HSC92517  Spergularia salina D. Atwood 1993-3-29 17734 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
Read comments
Jul 8 2010
  IRVC19346  Spergularia villosa R. L. Allen 1977-6-1 Orange 60m N of the intersection of [Acapulco] and Golden Lantern; sandy soil. Dana Point Comment
  IRVC26743  Spiloxene ovata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3161 Orange UCI Arboretum Southern Coastal 15 Comment
  CDA18985  Sporobolus indicus M. Salsona 2000-8-8 PDR 1223093 Orange Growing in turf at Heritage School, Santa Ana. 0 Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA680  Stachys ajugoides J. T. Howell 1927-6-30 246 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA691958  Stachys ajugoides Scott D. White, Michael Honer 2003-4-10 9001 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA754065  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35834 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UC284865  Stachys ajugoides var. rigida P. A. Munz 1923-9-7 7756 Orange trail from Holy Jim Canyon Santiago Peak; Santa Ana Mts. 1310 Comment
  RSA681025  Stachys rigida subsp. quercetorum Fred M. Roberts, D. E. Bramlet 2003-3-13 5575 Orange Donna O Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  SD245402  Stachys rigida subsp. quercetorum Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  CAS-BOT-BC374781  Stebbinsoseris heterocarpa D. E. Bramlet 2008-4-4 4174 Orange Foothills Santa Ana Mtns: Ridgeline above Limestone Cyn (East Loma Ridge), 1.57km west of Limestone Cyn. & 795m E of Round Cyn. 533 Comment
  IRVC22557  Stellaria media Fred M. Roberts 1985-5-1 1696 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  IRVC9287  Stellaria media B. Gittins 1963-3-29 108 Orange corner of Dorothy Lane and State College Blvd. Fullerton Comment
  RSA0119681  Stellaria media Fred M. Roberts 2015-3-10 7924 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  UCR222383  Stellaria media Mark A. Elvin 2003-1-26 2238 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC393819  Stellaria media Ira L. Wiggins 1966-3-1 20484 Orange Corner of South Campus Drive and State College Blvd., Fullerton Comment
  UCD99453  Stellaria media Ira L. Wiggins 1965-7-5 20368 Orange Orange grove 2 miles east of Atwood, on N side of Orangethorpe Ave. Comment
  UCD86398  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2 km inland of Hwy. 1. 1 Comment
  UCR13409  Stenotaphrum secundatum William A. Hunt 1972-4-9 720409- 02 Orange South Coast, San Clemente, San Clemente Beach State Park, day use area, bluffs directly overlooking Pacific Ocean 15 Comment
  UCR163512  Stephanomeria B. G. Pitzer, T. Tennant 1997-11-8 3370 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  JEPS36708  Stephanomeria diegensis L. M. Booth 1932-8-5 1360 Orange Newport Bay Comment
  POM202112  Stephanomeria diegensis L. M. Booth 1932-8-5 81 Orange Roadside near Yatch Basin. Newport Bay Comment
  POM186313  Stephanomeria exigua subsp. exigua Joseph A. Ewan 1932-6-28 7706 Orange Corona Del Mar Comment
  UCR224153  Stephanomeria exigua subsp. exigua Fred M. Roberts 2008-7-10 7065 Orange South Coast, Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8 km west-northwest of Marine Institute, Dana Point Harbor 65 Comment
  RSA95206  Stephanomeria exigua subsp. exigua F. W. Peirson 1923-3-18 3354 Orange Santa Ana River Canyon 122 Comment
  CAS-BOT-BC375867  Stephanomeria virgata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR191359  Stipa coronata A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34645 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR192109  Stipa coronata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR106284  Stipa lepida B. G. Pitzer, M. Georgiady 1997-4-5 3071 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR2804  Stipa lepida F. M. Reed 1928-7-10 6579 Orange Sidewalk in Laguna Beach 0 Comment
  HSC13368  Stipa pulchra C. L. Hitchcock, C. V. Muhlick 1964-3-17 23070 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  UCR192484  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0011014  Stylocline gnaphaloides Fred M. Roberts 2012-5-10 7570 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA678496  Stylocline gnaphaloides Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5846 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  RSA743376  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR26979  Styrax officinalis var. redivivus E. W. Lathrop 1966-4-18 s.n. Orange Santa Ana Mtns., 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  UCR58633  Styrax officinalis var. redivivus Reid Moran, D. Axelrod, Bob Smart 1975-7-18 22599 Orange Santa Ana Mtns., N slope of ridge, upper Trabuco Canyon 900 Comment
  SBBG128686  Styrax redivivus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49686 Orange Sierra Peak, Skyline Drive crest, MDT 'Trail' (Main Divide Truck Trail); n Santa Ana Mtns 900 Comment
  POM122884  Suaeda calceoliformis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  IRVC23985  Suaeda calceoliformis R. De Ruff 1988-6-5 Orange Newport Backbay, road just east of Shellmaker Island, Newport Beach 0 Comment
  CAS-BOT-BC110388  Suaeda esteroa Peter H. Raven 1957-9-28 11387 Orange At north limits of Surfside. Comment
  CAS-BOT-BC438783  Suaeda esteroa R. E. Riefner, Jr. 2012-11-6 12 -533 Orange City of Newport Beach, Newport Bay, North Star Beach, near Newport Aquatic Center, White Cliffs Dr./ N. Star Ln. 2 Comment
  RSA70016  Suaeda esteroa F. W. Peirson 1924-8-29 5082 Orange 2.5 miles from Balboa on road inland along creek. Comment
  UCSB36528  Suaeda esteroa Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay, along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  CAS-BOT-BC110406  Suaeda taxifolia Allan C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101. Comment
  POM259489  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Santa Ana River Bridge west of Newport Beach on U.S. Highway Alternate 101 Comment
  POM694  Suaeda taxifolia D. L. Crawford s.n. Orange Laguna Beach bluffs Comment
  RSA438588  Suaeda taxifolia N. C. Cooper 1942-11-9 883 Orange Balboa Comment
  RSA531318  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the SW end of the bay, 1km inland of Hwy 1. 1 Comment
  RSA5433  Suaeda taxifolia B. D. Stark 1932-12-9 4429 Orange 1 mi. N.W. of Laguna Beach Comment
  CAS-BOT-BC269703  Symphoricarpos mollis Scott D. White 2004-7-7 10603 Orange South Coast: Laguna Niguel 122 Comment
  POM6325  Symphoricarpos mollis P. A. Munz, L. T. Street, G. Williams 1919-5-4 2685 Orange Laguna Canyon. Comment
  RSA303567  Symphoricarpos mollis J. R. Shevock 1971-5-15 1011 Orange Santa Ana Mountains. At Irvine Lake, Santa Ana Mountains. Comment
  RSA542650  Symphoricarpos mollis Fred M. Roberts, R. E. Riefner 1988-7-19 4116 Orange Santa Ana Mountains region: Upper Silverado Canyon, Maple Springs Truck Trail, 2.1Km NNW Modjeska Peak. 1260 Comment
  UCR146529  Symphoricarpos mollis Scott D. White 2004-7-7 10603 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  RSA7691796  Symphoricarpos rotundifolius var. parishii Robt. Allen 2003-6-22 12276 Orange North-facing upper slope of Santiago Peak, along North Main Divide Road, circa 0.15 air miles north-northwest of Santiago Peak summit. 1687 Comment
  UC29835  Symphyotrichum defoliatum C. W. Hamlin 1896-1 25 Orange Buena Park Comment
  CAS-BOT-BC97981  Symphyotrichum hesperium L. M. Booth s.n. Orange Newport Beach Comment
  RSA696238  Symphyotrichum lanceolatum var. hesperium Keith E. Hoffmaster 1927-10-20 1047 Orange N. Greenville Comment
  UCR266376  Symphyotrichum subulatum D. E. Bramlet 2009-11-27 4431 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  UCR193816  Tamarix ramosissima A. C. Sanders, Fred M. Roberts 2008-7-16 35877 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  RSA749430  Tauschia arguta Fred M. Roberts 2008-4-14 6894 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.4 km E Robbers Peak, Irvine Ranch Conservancy. 433 Comment
  RSA588655  Tauschia arguta Fred M. Roberts, Carol A. Roberts 1990-5-23 4652 Orange West Fork, Upper Long canyon, near Main Divide Truck Trail, 4.4km SE Los Pinos Peak. 768 Comment
  RSA41794  Tetracoccus dioicus Fred Wylie 1948-03 s.n. Orange Near San Juan Camp Comment
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Sep 30 2013
  SD42981  Tetracoccus dioicus Fred Wylie Mar 1948 Orange Near San Juan Camp Comment
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Sep 30 2013
  UC1070358  Tetradymia comosa H. E. Norton 1931-3-13 38 Orange 2 mi ne Olinda; Corona Quad. 304